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A Simple Guide: How to Change My Airdrop Name?

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How to Change My Airdrop Name

AirDrop is a quick way to send data from one Apple device to another. It works when the recipient’s device is within range. People often use AirDrop for sharing pictures, screenshots, and documents.

AirDrop uses Bluetooth LE technology to transfer data through WiFi. This enables quick and secure transfers of photos, videos, and contacts.

One main issue with AirDrop is having too many Apple IDs to choose from when transferring data between iPhones and iPads. This can occur when multiple devices share default names like ‘iPhone’ or ‘iPad’.

How to change AirDrop name on iPhone

If you want to change the AirDrop name on your iPhone, just follow these simple steps below and you should be able to do it without any problem.

  • Open the Phone app
  • Click contacts at the bottom of the screen
  • Select your name at the top of the list
  • Tap Edit
  • Change how your name is displayed
  • Since your personal information in this contact card determines how your AirDrop option appears, this will impact and change for you too.

How to change AirDrop name on iPad

The method for changing your AirDrop name on an iPad is a little different but still easy – follow these steps.

  • Open the Settings app
  • Tap General
  • Tap About
  • Tap Name
  • Enter your new AirDrop name.

This will rename your iPad and therefore its AirDrop appearance with the name you want.

Changing the AirDrop name on Mac

If you have a Mac, the steps may vary a bit depending on the model, but you can follow them below.

  • At the top left of your screen, click the Apple icon.
  • Click System Settings
  • Click General in the left sidebar
  • Click About
  • Click Name and enter a new name

The change you made will be saved and you’ve just changed your AirDrop name (and your Mac’s name in general).

Conclusion:

And that’s a wrap! To make it easier for you to send and receive files or data, AirDrop offers an extremely convenient Apple functionality. However, to really make data transfer between iOS and macOS devices smoother, we recommend changing the AirDrop name. Additionally, since you are sending and receiving sensitive data, especially when connected to Wi-Fi and Bluetooth, it is important that you encrypt your connection using the best VPN for iOS and Mac.

FAQs 

How do I rename my iPhone AirDrop?

It’s relatively easy to change your iPhone’s AirDrop name. The particular name is also used by iCloud, PC and hotspot. To change the name, you need to go to the Settings app on your iPhone. Then choose General > About > Name.Now, just edit and change your iPhone AirDrop name. Once done, tap Done.

Why isn’t my AirDrop name changing?

If you’re having difficulty changing your AirDrop name or it hasn’t updated, try restarting your device. Do this after changing the name. Your AirDrop name has been updated.

How do I change AirDrop on my iPhone?

To adjust AirDrop settings, follow these steps:

  1. Open Settings.
  1. Tap on General.
  1. Select AirDrop.
  1. Choose an option from the available choices.

Why does AirDrop show the wrong name?

Is the name displayed the same as the one at the top of your Contacts list, titled “My Card”? If it’s incorrect, you can tap on it and edit the contact information.

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Why Should I Use a VPN Service

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Why Should I Use a VPN

A VPN brings anonymity and security. But there are many certain reasons why should I use a VPN service. We’ll show you nine of them.

  • Security and anonymity are just a few of the many benefits of a Virtual Private network
  • With VPN activated you save money when shopping online.
  • VPN programs also open up many new streaming options for you.
  • You can upgrade your (TV) hardware with VPNs.

VPN services are indispensable if you want to be safe on the Internet. However, they offer far more advantages beyond just security. We’ll show you 9 reasons why should you use a VPN service permanently. Because with a virtual private network you not only open up completely new streaming options, you can also save a lot of money.

Why Should I Use a VPN Service: 9 Compelling Reasons

1. VPNs protect on public networks

Would you like to connect to the free hotel WiFi or use the hotspot at the train station? It’s amazing how many people are on public networks unprotected every day. With a VPN you can protect your device from prying eyes.

2. Access to free live TV

Live TV streaming services are subject to the same restrictions as video streaming services – geo-blocking. However, since the offers differ in each country, VPNs promise access to more content. You can get more than 200 channels for free at Zattoo in Switzerland. 

3. Stream what you want, whenever you want with a VPN

In addition to the security aspect, bypassing country restrictions is probably the best-known function of VPN services. Whether Netflix, Disney+ or Amazon Prime Video: Nobody likes waiting for their favorite series to start. With a VPN service, you decide for yourself what you want to stream. Even services that haven’t even launched in certain countries like HBO Max.

4. Retrieve censored content

A less common use for VPNs in this country is to circumvent censorship. In countries like China and Russia, large parts of the Internet are blocked from all domestic users. Since you can change your virtual location with a VPN, you can easily avoid such censorship. But be careful: In some countries this procedure is undesirable, which is why websites of certain VPN providers are not even accessible there.

5. Download protection

If you occasionally download data from the Internet in the form of torrents, this process poses some risks. Even if you don’t make any illegal downloads, it might look like this to outsiders. The anonymity that the VPN service offers you is a clear advantage here.

6. A Virtual Private Network makes online shopping cheaper

There are websites that determine prices based on origin, operating system or other factors. In tests, flights were offered much cheaper if you booked them from a neighboring country. Overall, this type of price control appears to be particularly widespread in the travel industry. Thanks to the VPN service, we were able to book a flight for almost $500 cheaper and a rental car for even $600 cheaper in our own tests.

7. VPNs also work on Fire TV Sticks and televisions

You probably already know that you can seamlessly integrate a VPN on your computer and mobile devices. This service can also be installed on Amazon’s Fire TV sticks. This allows you to watch content on television that may not yet be available in some countries. It is even more convenient to use a router on which you can install a VPN directly.

8. VPN services prevent snooping by websites and authorities

Websites are curious. That’s understandable, after all they want to get better and ideally only write articles that you enjoy reading. But there are also black sheep among website operators who resell such information. Search engines may store search queries, the websites visited or the location where you are. And authorities also have an interest in reading your data. With a Virtual Private network you prevent excessive spying.

9. Secure your VoIP calls with a VPN

Making calls via VoIP is convenient and inexpensive. Even though it may cost a little speed, we recommend a VPN service for this too so that your phone calls are protected.

Conclusion: More than enough reasons for a VPN service

No matter which of the above reasons you choose a Virtual Private network provider for, each one is reason enough to spend around 3 euros a month. We advise against using a free VPN offer. Instead, you should look for cheap VPNs or current offers from this services and invest around 2-3 euros per month.

FAQs

Should I use a VPN while live streaming?

Using a Virtual Private network for streaming is helpful because it prevents your internet provider from tracking your online activities, which can lead to slower speeds if they see you downloading or streaming a lot.

Is streaming faster with VPN?

VPNs may be able to boost Internet speeds in certain situations. Some ISPs purposely slow down certain types of traffic, such as streaming services like Netflix.

Do streaming services detect VPN?

Virtual Private network connections that frequently change IP addresses or have IP addresses that don’t match typical residential IP ranges in a region can be detected by streaming services and flagged as potential VPN use.

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The Pros and Cons of Hydropower

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pros and cons of hydropower

Hydroelectric energy, highlighted in the discussion on the pros and cons of hydropower, is widely utilized as a renewable energy source globally. A hydroelectric or hydroelectric generator, integral to this analysis, harnesses water flow to drive a turbine connected to a generator. The movement of the turbine rotates the generator, effectively producing electricity. Explore the benefits and drawbacks of this innovative energy solution to gain deeper insights into its role in sustainable power generation.

What is Hydroelectric Energy?

Hydroelectric energy is a renewable energy source like wind and solar energy. Among other renewable energy sources, the type of energy with the most well-established technology belongs to hydroelectricity. It is known that the power of water has been used since the early periods of civilization. People benefited from hydroelectric energy thanks to water mills and boats. Before the industrial revolution in the 19th century, water mills provided power for many production activities. However, due to technological inadequacies, the energy produced could not be stored and was insufficient for industrialization, which led people to turn to other fossil fuels, especially coal.

Hydraulic energy provides benefits in various fields such as modern agriculture, irrigation, tourism and sports activities. But the most important of all is the production of electricity. Today, thanks to water turbines, kinetic energy is obtained from the power of water. The first hydroelectric power plant was established in America in 1882. In 2016, the world’s largest hydroelectric power plant was established in China. It is known that this power plant has a production capacity of 22,400 MW.

How Does Hydroelectric Energy Work?

Water has high potential energy when stored behind the dam. When this water is released towards the turbines, this potential energy turns into kinetic energy. When water spins turbines, the turbines are connected to a generator and this rotational motion produces electrical energy.

How to Classify Hydroelectric Power Plants?

Hydroelectric power plants are classified according to 6 separate criteria. These criteria are as follows:

  • According to storage method
  • According to installed power
  • According to the typology of the dam body
  • According to the capacity to meet the needs of the national electricity system.
  • Depending on the location of the power plant building.

What are the Types of Hydroelectric Power Plants? 

Depending on the type of development, hydroelectric power plants can be divided into three types:

Water Retention Facilities: A large-scale water reservoir is obtained by establishing dams. The most common use of hydroelectric power plants is through dam installation. Electrical energy is produced by the water passing through the turbines in the dam.

Pumping Facilities: Pumping facilities are established as a second water reservoir at the bottom of the established dams. Pumping facilities are very similar to water retention facilities. Water stored for future use can be pumped to the upper reservoir when needed.

Stream Facilities: Electrical energy obtained from natural water flow. Part of the stream passes through turbines. Dam installation is not possible.

Part of a hydroelectric power plant

The hydroelectric power plant consists of the following parts:

Dams: These are responsible for intercepting rivers and maintaining water bodies (for example, reservoirs) before containment, creating a difference in the water used for energy production. Dams can be made of mud or concrete (most commonly used).

Spillway: They are responsible for releasing some of the water that stops passing through the engine room and can be used for irrigation needs. They are located on the main wall of the dam and can be bottom or surface. Huge amount of water is lost in the basin at the foot of the dam to avoid damage when the water falls.

Water intake : They are responsible for collecting the intercepted water and transporting it to the machine through forced channels or pipes. The water inlet has a gate to regulate the amount of water reaching the turbine and a filter to prevent the passage of foreign objects (logs, twigs, etc.).

Power plant : The machine (generator turbine, hydraulic turbine, shaft and generator) and control and regulation elements are located here. Has an inlet and outlet to leave the machine area without water during maintenance or disassembly.

Hydraulic turbines : They are responsible for using the energy of the water passing through them to produce rotational movement through their own axis. There are three main types: 

  • Pelton wheel, 
  • Francis turbine, and 
  • Kaplan turbine (or propeller).

Transformer – An electrical device is used to adjust the voltage in an alternating current circuit while keeping the power steady. This device can increase or decrease the voltage as needed.

Power transmission lines : cables that transmit the generated energy.

What are the Usage Areas of Hydroelectric Power Plants?

Electricity Production: Hydroelectric energy is mainly used to produce electrical energy. Hydroelectric power plants are favored due to their lower cost and less harmful impact on the environment compared to other energy sources. The installation of hydroelectric power plants is increasing because it does not pose serious threats to nature and human life, as in the installation of fossil fuels and nuclear power plants.

Agriculture: Thanks to hydroelectric energy, large agricultural areas can be irrigated. Flour can be produced by grinding grain with mills built with the power of water. The first civilization in history to establish hydroelectric power plants for the purpose of agricultural irrigation activities was the Egyptian civilization.

Industrial Use: It is known that bellows were driven by the establishment of hydroelectric facilities in the ancient civilization ages.

Use to Close the Energy Gap: As fossil fuels such as gasoline, coal and natural gas are becoming depleted, the trend towards other natural resources has increased to meet the energy needs. In addition to solar and wind energy, water power is also utilized in this context.

Pros of Hydroelectric Energy

There are a number of examples with the advantages of hydroelectric energy, also known as dams. Compared to fossil energies, this type of energy is a promising technology. Let’s see the advantages of this type of energy obtained from the movement of water.

It is a renewable and sustainable energy

The kinetic energy of flowing water is used to generate electricity from hydroelectric energy. Although it may cause some difficult and environmental climate problems, it is currently a strong and sustainable energy source.

It is an eco-friendly and clean energy source

The energy produced by hydroelectric power plants does not create toxic or greenhouse gasses that pollute the atmosphere. They release less greenhouse gasses than fossil-based power sources. This helps reduce climate change, acid rain and smog. It can also improve air quality because they do not emit air pollutants.

It is a useful system for sustainable development

Can develop in an economically viable, environmentally sound and socially responsible manner. Hydroelectric enterprises operated in this way represent the best concept of sustainable development. It attracts various industries and provides an overall boost to trade. 

It is the country’s domestic power source

Unlike fossil fuels, hydroelectric production does not require the system to be transported over long distances. There is no mining involved in the hydroelectric production in question. The power plant installed will convert water into energy.

Supports guaranteed energy and price stability

Despite expensive upfront building costs, hydroelectric power plants are a cost-competitive energy source. River water is a domestic resource that, unlike fuel oil or natural gas, is not subject to market fluctuations.

In addition, it is the single largest source of renewable electricity. The cost-benefit ratio, efficiency, flexibility, and reliability of thermal power plants contribute to optimizing their use.

Creates jobs and employment

Hydroelectric power plants are beneficial for regions with high unemployment rates. Building these plants provides job opportunities and enhances living standards for the local community. This leads to a rise in average income, boosting consumption and tax revenues.

Contributes to the development of remote communities

Hydroelectric power plants provide electricity to remote communities. It attracts the construction of highways, industry and commerce. All these activities are aimed at stimulating the economy of these remote areas and increasing access to education and healthcare. And it serves to improve the overall quality of life of residents.

Creates entertainment and tourism opportunities

The lake formed behind the dam can be used for activities such as fishing, boating and swimming. The water of the lake can also be used for irrigation purposes. Apart from this, large dams are becoming a hotspot for tourist attractions. It could provide an economic boost to nearby towns.

Cons of Hydroelectric Energy

Hydroelectric energy has advantages as well as disadvantages. The negative effects of these power plants are generally on the environment and local ecology. Here are some definite cons of hydroelectric power.

Environmental Impact

Disruption of natural water flow can have a huge impact on the environment and river ecosystem. Hydroelectric facilities may affect the lands in the dam area, forests, swamps and grasslands in the valley. Reservoirs can include people’s homes, natural areas, and farmland.

Areas that were previously covered with water may dry out, and dry ones may become covered with water. In turn, many animal and plant species may be mixed due to these changes in natural habitats. This may cause species to decline. It can also lead to imbalance in local ecosystems.

High construction costs

Constructing these plants and dams can be incredibly expensive. Additionally, projects take a long time to complete. It will need to be operated for a long time to earn back the money spent on construction.

Limited reservoirs

Although water is an unlimited resource, the conditions required to build a dam are limited. For the efficient production of hydroelectricity, large rivers or streams that will provide sufficient water are needed. It is difficult to find a suitable location that has a large water supply throughout the year, the right amount of water, and is close enough to existing power lines.

Drought potential is high

If hydroelectric energy is to be established, water abundance and drought cycles should be taken into consideration. This usually occurs in areas with local drought.

Border conflicts may occur

Rivers often represent the border between two countries. Decisions regarding the construction of hydroelectric power plants are in question. Both countries need to agree that this construction meets the goals of both countries.

If one country wants to build a hydroelectric power plant and the other country does not, this could even lead to wars between countries in the worst case.

May cause relocation due to flood risk

The local population living in the area may become vulnerable to floods due to possible water flows from dams. As a result, people are forced to relocate to facilitate the construction of the dam needed to generate hydropower. According to the report published in 2000, the World Commission on Dams   estimated that dams physically displaced 40-80 million people worldwide.

Causes deterioration of water quality

When dams are created, they limit water flow, which affects oxygen levels in the water. Lower oxygen levels behind the dam can also result in lower oxygen levels downstream. When there isn’t as much oxygen in the water, it’s harder for some fish species to survive, affecting river habitats.

Conclusion:

Do you think hydroelectric power plants should or should not be built according to their advantages and disadvantages? You can express your thoughts about the Advantages of Hydroelectric Energy in the comments. In this way, it can be determined whether the advantages or disadvantages of Hydroelectric Energy are dominant.

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What is Adversary Simulation with Caldera?

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adversary simulation

In the first of these three use cases, Caldera seeks to test the detection capabilities of several tools of the same type (for example, multiple EDRs together). This approach allows users to compare and select the tool that best suits their needs, based on context, expectations, and Caldera’s detection capabilities. Additionally, evaluating the investigative possibilities among different tools is intriguing because it provides valuable insights into their effectiveness.

Today, attacks are increasingly complex and spread out over time. This is why experts are now talking about Advanced Persistent Threat (APT). In response, detection mechanisms have also evolved, with the advent of Endpoint Detection & Response (EDR) technologies, which aggregate and correlate single events to help detect weak attack signals. These EDRs, among other technologies, are generally operated within a Security Operation Center (SOC). So how do we ensure that these detection mechanisms are configured correctly, and how effective are they?

What is the role of adversary simulation?

Adversary Simulation, often referred to as Red Team Testing, is a cybersecurity technique that involves simulating real-world cyberattacks to assess an organization’s security posture. In practice, this comes in the form of servers and/or agents, which simulate attacks or exploits of vulnerabilities, in a more or less complex and procedural manner.

In order to categorize and reference attacks correctly, different security frameworks are used, such as the Cyber ​​Kill Chain or the MITER ATT&CK matrix. The Cyber ​​Kill Chain offers, for example, a list of 227 attack techniques divided into 14 tactics, and is widely used to simulate the stages of a complex attack.

What is Caldera?

The non-profit organization “ MITRE ” , which is at the origin of the “ ATT&CK ” framework mentioned above, has also developed an Open Source adversary simulation tool: Caldera, available on GitHub.

Its operation is rather simple. Only install it on a dedicated server, then deploy an agent that functions identically to a Beacon on client machines. The server can then act in a manner identical to a “ Command and Control ” (C2), by giving directives to the agents to carry out different attacks or data exploitations.

What makes this tool interesting is, beyond giving instructions to a live agent, that it allows you to develop or replay complete attack scenarios. In particular those carried out by APT groups or by companies having carried out an intrusion test operation on the IS.

Caldera natively offers a number of commands and tools. The latter, called “ Ability ”, allows for example to do enumeration, download payloads or malicious tools – such as “ Mimikatz ”, but above all to execute them. However, some of them are templates, and therefore require modification. Finally, it is also possible to create your own Ability based on “ in-house ” scripts , for greater flexibility. An interesting capability of Caldera is its ability to obfuscate, which enables it to hide malicious commands by interpreting them as base64, for example.

When and why to use it?

Caldera can test different detection tools and means, replay the different stages of an intrusion test or a security audit, or even prepare a SOC.

Tool Detection Capability Testing

In the first of these three use cases, Caldera seeks to test the detection capabilities of several tools of the same type (for example, multiple EDRs together). This approach allows users to compare and select the tool that best suits their needs, based on context, expectations, and Caldera’s detection capabilities. Additionally, evaluating the investigative possibilities among different tools is intriguing because it provides valuable insights into their effectiveness.

Scenario Reproduction for Attack Testing

For the second case, the idea is to faithfully reproduce the attack scenario used by the company that carried out the intrusion test. This action aims to verify that the scenario fails, once the auditors have effectively implemented the recommendations.

Integration with SOC for Enhanced Detection

Finally, the last use case is where Caldera receives a SOC. Indeed, the SOC collects data from all deployed security tools and adds a part of event correlation with a SIEM ( Security Information and Event Management ). This makes it possible to refine detections, based on all the data sources collected. The use of an adversary simulator can therefore contribute to the recipe of a SOC, and verify the effectiveness of its detections in the face of complex attack scenarios.

In a context where the concept of Purple Team is increasingly important, adversary simulation is undoubtedly the key element of its implementation, in order to guarantee continuous improvement of detection tools and IS configurations. It allows you to test all the processes put in place by the SOC to ensure that they work optimally. However, its use in no way replaces a real Red Team operation , it is only a complement to it. The combination of these two factors will contribute to a comprehensive and viable security strategy.

Conclusion:

In conclusion, Caldera presents a vital tool for modern cybersecurity, enabling organizations to proactively assess and enhance their defense mechanisms. By simulating attacks and exploits, Caldera empowers companies to validate detection solutions, recreate real-world scenarios, and bolster Security Operation Center readiness. Its flexibility and open-source nature make it a valuable asset in the ongoing battle against advanced cyber threats. Embracing adversary simulation tools like Caldera is essential for organizations striving to maintain resilience in the face of evolving security challenges.

FAQs

What is caldera in cyber security?

Caldera stands as a sophisticated cybersecurity framework meticulously crafted to seamlessly automate adversary emulation, bolster manual red-team efforts, and streamline incident response protocols. Leveraging the foundation of the MITRE ATT&CK™ framework, it remains a dynamic research endeavor led by MITRE, aimed at fortifying cyber defenses across diverse landscapes.

What is a Caldera server?

Caldera serves as a cutting-edge adversary emulation platform engineered to effortlessly conduct autonomous breach-and-attack simulation exercises. Flexibility is a hallmark, allowing for manual red-team engagements or automated incident response with equal ease and efficiency.

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