Both said their online payment systems were affected by a massive attack on a popular DNS provider.

A group of hackers known as UGNazi has claimed responsibility for bringing Twitter down for some 40 minutes this afternoon. Twitter, on the other hand, said it was merely an internal bug.

Last week’s cyberattacks that brought down D.C. government websites for the better part of a day have continued, with hackers again briefly overwhelming the DC.gov website last night.

After bringing down D.C. government websites yesterday, hackers posted information about Mayor Vince Gray online, including what they claim is his Social Security number.

One of the hacker’s responsible for today’s cyberattack on D.C. government servers warned that more attacks were to come.

Having trouble accessing DC.gov websites? That’s because they’ve been under attack by hackers today.