Privacy Alert! Renown Chrome VPN Extensions Leak Your DNS Data
- Salman Ahmed
- April 27th, 2018
This past month, The Register revealed that a various number of renowned VPN’s were leaking users’ real IP locations.
Recently, another news went viral on different websites claiming that the popular Chrome VPN extensions leaking DNS data.
Leaking of a DNS is a security flaw from a VPN provider where your online activity is leaked to your ISP. However, note that leaking of DNS is not the part of WebRTC; they are completely different from each other.
Hence, this also might be possible if any VPN Chrome extension leaks, it doesn’t mean that the whole VPN service is leaking your data. It happens in Chrome browser because DNS prefetching is turned on by default.
Total 17 Chrome VPN extensions were tested. Shockingly, according to test, 7 out of 17 Chrome VPN extensions leak your DNS.
If you analyze only top 4 VPN Chrome extensions, they provide services to millions of users globally, which means DNS data of millions (in millions) is presently at great threat.
Based on the Explanation by Google Officials, Prefetching DNS is a process to settle the actual domain names before user search for any link.
It can be done by using system’s basic DNS: no connection is necessarily needed to Google. So when a user directs to some specific domain, there will be no such detention due to DNS resolution time.
The most basic information that can help you understand DNS prefetching is when you’re surfing a website with different links to numerous domains i.e. search list.
According to our tech experts, you can resolve this issue by following these steps
By following instructions you can test that your Chrome VPN is leaking your DNS or not:
If you still find it difficult to follow above-mentioned steps, you can also watch the following video: