Guys, the authorities have
confiscated another service (AudiA6). It was founded around the same time as Mixtum/ChipMixer... but as with ChipMixer, confidentiality was only in name.
AudiA6 stored all its backups on a Hetzner Storage Box, which contained 25 project employee accounts, a history of 500,000 support emails, and 13 tables containing 6,000 cryptocurrency exchange account logins.
Bad news for the industry. But Jambler and its partners, including the longest-serving MixTum, are still operating after 8 years, which would have been impossible without a complete and utter deletion of all client logs.
Btw, thinking about this news, I decided to
read the history (Bitcointalk) of the Jambler thread and came across some interesting facts.

Two of the three oldest existing BTC mixers are built on Jambler.

Someone donated $30 million to Ross Ulbricht using Jambler's infrastructure.

Over 8 years, there have been only 4 documented maintenance outages.

Over 8 years, not a single valid fraud charge has been brought against Jambler partners.

Over 8 years, not a single Jambler mixer has been shut down or confiscated by authorities.

The only project that offers turnkey mixer creation (website, mirror, Telegram bot, PGP, liquidity).

A professor at Arizona State University (Cyber Security Department) released a report with detailed testing of a mixer built on Jambler (he has 2.3k followers on
GitHub.