Facebook Can’t Reset All Breach Victims’ Access Tokens

Warning: Attackers behind the recently revealed Facebook mega-breach may still be able to access victims' accounts at some third-party web services and mobile apps, and Facebook has offered no timeline for when a full lockdown might occur - although there are no signs of third-party account takeovers.

Source: https://www.healthcareinfosecurity.com/blogs/facebook-cant-reset-all-breach-victims-access-tokens-p-2669