Zuckerberg mentions the «
certifications» obtained from Cambridge Analytica and Kogan in 2015 that they'd deleted the
data harvested once Facebook discovered the
breach — but also claims the company learned only last week that the
data hadn't been deleted because
of the Times and Guardian reports.
A number
of recent high - profile
data breaches affecting law firms, including the infamous Panama Papers
breach, have drawn attention to the issue
of data security
certification.