Benefits of using VPN services and indicators when selecting a VPN provider
When using VPN service Secure communication-Concealment of communication contents-Anonymization of communication In addition to the benefits of, by specifying the connection server Impersonate the location information of the connection sourceBecause you can Geoblock (Technology that imposes restrictions on geographical location) can be avoided.
Communication security was a problem with HTTP connections, with HTTPS traffic exceeding 2017% in 90 as Google promoted HTTPS to encrypt communication between web browsers and servers. Man-in-the-middle attack The risk of eavesdropping due to (Man-in-the-middle attack) has been greatly reduced, but the Wi-Fi free spot that has increased due to the spread of smartphones is due to Wi-Fi hackers. Eavesdropping , Spoofing Are exposed to the risk of.
By using the VPN service Communication is protected by encryption and tunnelingFor Eavesdropping Can be prevented.
Concealment of communication contents
To the internet ISP You connect through (Internet service provider), but when you use the VPN service, the connection destination via the ISP becomes the VPN server, and the communication between the VPN server and the user is encrypted. The ISP only has logs that connect to the VPN server.
Log storage and censorship by ISP
The ISP keeps a log of communications that have passed through the ISP's network, and when a request for disclosure of personal information based on legal grounds such as a court warrant is approved, the name and address of the contractor from the IP address that accessed the server. Etc. are disclosed.
Edward Snowden NSA According to (National Security Agency)International surveillance network By revealing the existence of (PRISM), an urban legendary public institution SIGGINT There is a growing sense of caution about (interception of communications), and an increasing number of people are taking privacy protection measures even at the individual level.
Anonymization of communication
Although it is related to the concealment of communication contents, when using the VPN service, it connects to the VPN server via the ISP and connects to the browsing site from the VPN server, so not only the ISP but also the browsing site server of the VPN server Only the IP address is recorded.
Since many VPN providers have servers installed in various countries around the world, it is possible to access sites that do not accept connections from overseas by connecting to the VPN server in the target country.
VPN is a useful service for communication security and privacy protection, but VPN providers can collect user traffic information like ISPs, and the reliability of VPN providers is important.
Auditing from a third party ensures security when selecting a VPN provider.
No logs policy
Since the VPN provider can record the behavior history of the same user as the ISP, it is essential to adopt a no-log policy that does not save the access log if you want to completely hide the behavior history.
DNS leak (DNS leak)
In the VPN service, it is common to use the encrypted DNS server provided by the VPN provider, and the IP address of the access source is not visible, but the IP address that should not be visible is visible. DNS leak Called (DNS leak).
When the connection to the encrypted DNS server is lost, the DNS query is forwarded to the DNS server of the unencrypted ISP to maintain communication, so the VPN service forcibly shuts down the network. Kill switch It implements a feature to prevent DNS leaks.
Even a provider that adopts a no-log policy may be legally forced by a public institution to monitor a specific IP address or log an account, and the provider's location is also an indicator when selecting a service.
Warrant canary Indicates that a company that handles personal information, such as a VPN provider, has not received a data submission request from a public institution.
Warrant canary It has no legal basis and is not a guarantee of security, but it is an indicator of privacy protection.
On the VPN provider's site IP address checker-DNS leak test-WebRTC leak test Etc. are installed, and when you access it Leaking Is displayed.
The tools installed on the site All access from environments other than your own VPN service is leaked Is displayed, so it is not credible at all.
Check for DNS leaks
Check for DNS leaks by visiting the test site, not the provider's site.
IP Leak.net , this means a Your IP address と DNS Address If is the same IP address and the country of the connected VPN server is displayed, there is no DNS leak.
If there is a DNS leak, the DNS server is different from the connected server, such as in Japan.
Check communication speed
Check the communication speed by connecting to the fastest server with the VPN app.
Make sure that there is no significant slowdown by measuring with and without VPN connection.
In recent years, VPN providers have been integrated through acquisitions, but there are many cases where the actual situation of the parent company and operations is unclear.
Lithuanian North Security The NordVPN The top VPN provider that offers.
- October 2021: Atlas VPNAcquired
- February 2022: SurfsharkMerged with
Kape Technologies PLC Is a cybersecurity company owned by Israeli millionaire Teddy Sagi.
- October 2017: CyberGhost Acquired
- October 2018: Zenmate VPN Acquired
- February 2019: Private Internet AccessAcquired
- February 2021: ExpressVPN Acquired
VPN comparison site
Many VPN services offer affiliate programs, and some VPN comparison sites and ranking sites focus on profits, while others are set up by group companies of VPN providers.
The index of ranking is communication speed-Active log-Base-Anonymity-Streaming service support-Price However, since the communication speed differs depending on the location of the connection source and connection destination, it is not known until the actual connection is made.
Cases that undermine VPN trust
VPN providers that are not audited by a third party have opaque data processing and are actually experiencing problems.
PureVPN explains that the submitted network log is automatically generated for troubleshooting etc. and that the user's activity is not saved. No logs policy The reliability of the was greatly impaired.
Israeli software vendor Hello Was offered by Hola VPN Now, let ’s take a look at the user ’s device. Exit node It was discovered that it was being used as (the IP that eventually accessed the server), and VPN users were selling bandwidth for $ 1 per GB.
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