Twitter Problems

  SAN JOSE, Calif. (AP) - Twitter’s been having a rough couple of
weeks.
    A researcher looking into the attacks that knocked Twitter
offline last week discovered another, unrelated security problem.
    At least one criminal was using a Twitter account to control a
network of a couple hundred infected personal computers, mostly in
Brazil. Networks of infected PCs are referred to as “botnets” and
are responsible for so much of the mayhem online, from identity
theft to spamming to the types of attacks that crippled Twitter.
    The discovery was made by Jose Nazario with Arbor Networks. The
affected Twitter account was taken down. Twitter didn’t immediately
respond to e-mails from The Associated Press.