Software looks very good and solid. I was happy to use it for years until discovered that it sends sensitive data to Russia, even when I use HTTPS secure connection. Every modern browser have "Debug" mode – You can press F12 key to open console and choose "Network" tab to see all requests your browser makes when you open the web page. I was amazed when Kaspersky reported all my secure google requests and bank sessions to ie.kis.scr.kaspersky-labs.com (126.96.36.199) which is located here:
[...] [...] [...]
When I was authorising into my bank with security details, Kaspersky would send links like that:
Responses from Kaspersky looked like static content. It means that there is no need to for Kaspersky to supply metadata to Russian Federation in order to protect its customers from viruses. Kaspersky developers could choose to load these scripts from locally running web server (127.0.0.1) and not compromise customer's security. This is not the rocket science. Decision to send sensitive data to Russian Federation and enable possibility for Russian government to track every web site visit of Kaspersky's customer and acquire all logins and passwords does not look like a rookie mistake.
Data goes to Russia; it means Russian law applies to it. Recently President Putin signed the Yarovaya bill into law, which is draconian law designed to collect data, make cryptographic backdoors mandatory and allow access to it by Russian security services for 3 years. Kaspersky accessing your sensitive data and sending it to ie.kis.scr.kaspersky-labs.com is exactly that - cryptographic backdoor.
Due to this discovery, I would not recommend to install this software, because you will open yourself wide open for Russian Security services.
If you have Kaspersky on your computer, then please open site like google.com in secure mode (HTTPS), press F12 for debug mode, go into “Network” tab, refresh page and see for yourself.
Edit: All of it makes more sense if you read about Eugene Kaspersky and Kaspersky Lab on Wikipedia. Russian KGB and FSB is all over it.
Been using Kaspersky for a few years and it's always been reliable and fairly unobtrusive. I ordered the Download version from Amazon, which seems to be a customised version as it has the licence key info as part of the install process.
The only issue I had (and hence only a 4 star) is that it would not install on Windows 10. I was, however, able to download a version from the Kaspersky web site and use the licence code from the Amazon version and it worked OK.