I would doubt this is true. I believe that coinbase was having some issues with their system capacity when many people were trying to access their coinbase accounts at once.
Well, it better be the case, otherwise the will go bankrupt... or maybe not, but that's what they deserve, specially after all the IRS fuckery and so on, which is expected but it still pisses people off, specially with Brian Arrstrong has been attacking core, shilling classic and other crap, shilling alts like ethereum and being anti segwit.... fuck those guys. We really need decentralized exchanges soon. Hopefully with the LN we can have fast velocity decentralized exchanges, this "hacking" bullshit needs to stop.