For the very first time, security researchers have discovered an effective way to exploit a four-year-old hacking technique called Rowhammer to hijack an Android phone remotely.
Dubbed GLitch, the proof-of-concept technique is a new addition to the Rowhammer attack series which leverages embedded graphics processing units (GPUs) to carry out a Rowhammer attack against Android smartphones
https://thehackernews.com/2018/05/rowhammer-android-hacking.html
I do have my reservations here, while accepting the fact that congress leaders did look blank face to understand how tech works. However I feel here that being a CEO, Mark had no clue what questions were being asked. As a CEO who is responsible for safeguarging data of more than 2 billion people on the planet, it is not acceptable to pass on the buck to the internal teams, saying that they will have them answered. The entire fiasco is a big controversy which I feel needs to be looked with a much more deeper lens