Plex Security Incident

> Any account passwords that may have been accessed were securely hashed, in accordance with best practices, meaning they cannot be read by a third party.

I am glad they were hashed, but that's a misleading statement. The point of hashing is to slow an attacker down, even with full best security practices (e.g. salt + pepper + argon2 w/high factors) they can still be reverse engineered. It is a matter of when, not if.

One of the aspects of MtGox's database leak that I found most fascinating to watch was the public effort to figure out users' passwords from the hashes. Checking common passwords, patterns, and people's public interests on Twitter was all shockingly effective.