The services must ensure their safety and keep them protected and private.
If this is a serious situation when an attack happens, worse is when it results from a failure.
Recently, a severe security flaw, Cloudbleed was discovered by a Google security investigator from Googles Project Zero.

Cloudflare have been leaking customer HTTPS sessions for months.
It is a precautionary measure that should be taken already.
It is estimated that more than 3,400 sites have been affected.

In any case, users authentication data, cookies, and keywords were circulated.
