VPN: The pros and cons of using a VPN for data privacy

A Virtual Private Network (VPN) provides users with increased security and privacy online, both professionally and personally. What exactly is it, and what data protection aspects are involved? We explain.

Accessing the internet via unsecured connections is risky. In theory, anyone can monitor your activity. When exchanging sensitive data, extreme caution is required during transfer. A protected VPN connection provides useful benefits for data security in several ways. What exactly is a VPN? And what are the pros and cons of using one? Answering these questions is also relevant from a data protection perspective. The following article provides clarity.

What is a VPN?

VPN stands for Virtual Private Network. A VPN connection allows users to access an existing network from the outside, providing security and control over all data involved. Thanks to encryption technologies, unauthorized parties cannot easily intercept sensitive information. Access to company drives can also be precisely regulated and secured via a VPN connection. A VPN acts like a tunnel: users connect to a VPN server using a special VPN client. All data exchange between the client and server is encrypted by default. To outsiders monitoring an unsecured connection, only encrypted data packets are visible. The VPN tunnel shields all content. VPNs are used in both professional and private contexts. The connection can be established via software or a dedicated server.

Always on the safe side

A VPN is just the first step toward ensuring secure data transmission. Especially with digital applications, there is much to consider to maintain IT security. We specialize in advising companies across a wide range of industries on these matters.

What are the pros and cons of a VPN?

A VPN connection offers users numerous advantages. However, there are also some risks and disadvantages that can arise from using a VPN. Below is an overview.

Advantages of a VPN:

• Secure internet access in public places

A VPN connection allows you to use the internet via public Wi-Fi hotspots without unauthorized parties being able to intercept your content.

• Uncensored internet access in restricted regions

In countries that regulate the internet, users can access censored content via a VPN.

• Secure data exchange between home office and workplace

A VPN is particularly useful for business professionals who travel frequently: the VPN tunnel provides a secure connection for data transfer, even while on international business trips.

• Greater privacy when using the internet

Encrypted data transfer ensures that internet service providers can no longer monitor their users' activities to the same extent as before.

Disadvantages of VPNs:

• Slower speeds

Depending on the server location, VPN connections may run slower due to latency.

• Technical effort

Setting up your own VPN server requires a fair amount of expertise and IT resources.

• Potential security risk from software providers

If a company-owned server is not available, businesses should be sure to choose a reputable provider. After all, they may have access to all the data involved and are responsible for the security of the connection.

• Blocking of VPN services

VPN connections can be blocked by some providers. Netflix is a well-known example of this: the streaming service is contractually permitted to show content from film distributors only in specific countries. Consequently, it blocks IP addresses that appear to be using a VPN connection. Some totalitarian states also block unauthorized VPN connections.

Data protection and VPNs: what you need to know

VPNs make an important contribution to data security. Nevertheless, users should be cautious when using them. While a VPN tunnel shields data from the outside, unreliable providers also pose a security risk. After all, all data passes through the VPN provider's server network. Users should therefore look for quality indicators that distinguish reputable providers: a "no-log policy," for example, promises that no data is stored in log files. However, it is difficult for users to verify whether this promise is actually kept. Your data is safer on your own server. For companies with the necessary capacity, this is the preferred option. Even here, however, it must be kept in mind that all IT staff involved have access to all data. Responsible use of this technology is therefore essential.

VPNs make an important contribution to data protection in both private and professional contexts. When used correctly, they provide users with more privacy and data security on the internet. However, a VPN connection does not only offer advantages—it also entails several disadvantages and risks. Implementation requires a high level of technical understanding, and data security is only guaranteed if everyone involved acts responsibly. It is therefore worth weighing up whether using one is worthwhile for your specific needs. If you are unsure about the best way to protect your data, just get in touch with us. The Proliance team is always happy to advise you on all matters relating to data security.