When the Twitter handle for Mexican fast-casual restaurant Chipotle started posting strange messages on July 21, it appeared to be the latest high-profile account hack. The messages, some of which may be seen above, swapped Chipotle's usual carefully hashtagged tweets for staccato nonsequitors, including one apparent missive for a loved one to pick up some lime, salt and onions. An account administrator eventually apologized for "a little problem on the account" after 12 of the strange tweets.