If you're considering memory.mts.ru for cloud storage, the good news is that it's backed by MTS, one of Russia's biggest telecom companies. That alone gives it a level of trust that a no-name startup couldn't match. The site uses strong encryption to protect your files, has a clear privacy policy, and clearly identifies itself with contact and legal information.
For a cloud storage service, the key things to look for are transparency about how your data is handled and solid security. memory.mts.ru delivers on both. While you won't find a Trustpilot profile or extensive third-party reviews, the parent company's reputation is well established. If you're already an MTS customer, this is a convenient extension of their services.
This isn't a fly-by-night operation. The site's compliance and security posture match what you'd expect from a legitimate commercial storage provider. So yes, it's safe — you can upload your photos and videos without worry.