If this hacking incident do happen in social engineering then they should start on making intensive training or seminars into their staffs and other works that they
shouldnt let theirselves easily fall out into obvious traps.Human error is one of the common reasons why these breaches do happen excluding those technical ones.
If it wont work out on technical stuff then hackers will just do the other way around.
i switched to twitter over facebook because facebook is said to sell out users data's but no major hacking on facebook that happened on the past . twitter is a peaceful place before till the crypto hype begun to burst on twitter . many crypto personalities were involved on twitter more than on facebbok thats why . i dont think thier security is weak but they can always improve it now that heavy hacking are now happening . they can hire more qualified technicians to do the job if thier old employees cant handle much work