Just this morning a lot of my LaTeX formulas have lost their backslashes. A formula that I wrote, starting "\displaystyle\sum\limits" now starts "displaystylesumlimits". Characters like "\alpha" have become "alpha".
Is this a WordPress bug, or is it possible my account has been compromised? To test the latter, is there a way to tell when a given post has been edited, because some of these it should have been months since I touched them.