The TL; DR of his note to users was that Cambridge Analytica’s misdeeds were the results of Facebook’s flaws that were patched long ago. “The good news is that the most important actions to prevent this from happening again today we have already taken years ago”.
The word “sorry” did not appear on Zuck’s statement, but he did say he was trying to figure how to make sure this does not repeat itself again. He’ll also be speaking more about this later tonight on CNN so make sure you tune in.
Facebook’s COO Sheryl Sandberg followed up with a post of her own stating that Facebook would be investigating all apps that had access to large amounts of information prior to 2014 when the company made changes to its API. Facebook also detailed new steps it would take to curb user-data abuse, like notifying people about misuse cases and conducting a review of the platform things that one would hope the company does on a regular basis anyway.