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Everything You Need To Know About VPN

 


In an era where our daily lives intertwine with the digital world, the internet becomes both a companion and a potential threat, understanding the role of Virtual Private Networks (VPNs) is key to safeguarding your online experience. Whether you're working remotely, enjoying a coffee shop's Wi-Fi, or travelling, a VPN functions as a dependable safeguard against potential security risks.


What is a VPN? 

A VPN, or Virtual Private Network, is your online security guard. Its purpose is to create a secure, private tunnel over the internet, encrypting your data and protecting it from prying eyes. This extra layer of security is especially crucial given the internet's initial design prioritising data transfer reliability over privacy.


How does it work? 

Imagine your computer wanting to visit a website like ZDNET. Instead of sending unprotected data, a VPN encrypts it and sends it through a secure tunnel to a VPN server. This server then decrypts the information, establishing a safe connection between your device and the destination, ensuring your data remains confidential.

There are two main types of VPNs. Corporate VPNs connect private networks within the same organisation over the internet, securing data transmission. Consumer VPNs, offered as a service, protect your data transmission to the provider's data centre, enhancing security, especially on public Wi-Fi.


When should you use a VPN? 

Whenever you're away from your secure home or office network and using public Wi-Fi, a VPN is your go-to. It adds an extra layer of protection against potential snoopers on open networks, especially when accessing services with personal information.

Choosing the right VPN service matters. While free VPNs exist, they often come with privacy risks. Some are even set up by malicious entities to harvest personal data. Opting for a reputable paid VPN service is a safer choice.

However, a VPN does not serve as an infallible solution for privacy. While it secures your connection, it does not have the capability to prevent websites from tracking your activities. Users are advised to maintain vigilance regarding potential privacy infringements that may extend beyond the scope of the VPN.


Concerned about your computer slowing down? 

Advancements in CPU performance have effectively mitigated the impact of data encryption and decryption processes. However, network performance remains susceptible to the quality of public Wi-Fi and the geographical location of the VPN server. 

Certain VPN services may impose limitations on usage, such as data caps or speed restrictions. These restrictions are often associated with free services. Therefore, opting for a dependable paid service that aligns with your specific requirements becomes imperative.

In the domain of online security, VPNs play a pivotal role. Whether safeguarding sensitive work data or ensuring privacy on public networks, a comprehensive understanding of VPN fundamentals empowers users to traverse the internet securely. It is advised to make informed choices, stay updated, and consider your VPN as a reliable tool for online protection.


Telco Penalized €9 Million for Obscuring Cyberattack Impact from Customers

 

The Greek data protection authority imposed a fine on COSMOTE of 5,850,000 EUR ($6.55 million) and OTE was fined 3,250,000 EUR ($3.65 million) for exposing sensitive customer data due to a cyberattack. 

COSMOTE violated at least eight articles of the GDPR, according to the agency, including its responsibility to inform impacted customers of the full consequences of the incident. 

COSMOTE and OTE (Hellenic Telecommunications Organization) are both parts of the OTE Group, Greece's largest technological business, which provides fixed and mobile telephony, broadband, and network communication services. 

COSMOTE launched an internal investigation in 2020 and discovered that a hacker utilized LinkedIn to social engineer one of its employees and then used brute-forcing techniques to obtain the target's account credentials. According to the investigation's results, the attacker repeatedly utilized a Lithuanian IP address to access one of OTE's servers. On five consecutive occasions, the threat actor used the account credentials to extract database files and the data that was stolen and was 48GB in size. 

COSMOTE keeps call details on its servers for 90 days for service quality assurance and further 12 months for statistical analysis that aids in targeted service enhancement. The anonymization process wasn't done effectively, and the data holding periods weren't fully adhered to, as the data protection authority investigation discovered. 

The compromised server included sensitive subscriber information and call data for the dates September 1, 2020, to September 5, 2020. 

The following are some of the details that have been revealed: 
• Rough positional data of 4,792,869 unique COSMOTE subscribers. 
• Age, gender, plan, and ARPU of 4,239,213 unique COSMOTE subscribers. 
• MSISDN/CLI of 6,939,656 users of other telecommunication providers who communicated with customers of COSMOTE. 
• MSISDN, IMEI, IMSI, and connected tower position for 281,403 roaming subscribers of COSMOTE. 

In some circumstances, the above data could be utilised for highly targeted social engineering, phishing, and even extortion. Nonetheless, for targeted subscribers who may be high-interest personalities, the consequences of the hacking attack could be substantial.