Apple was informed of an iCloud security vulnerability that could lead to compromised user data as early as March 2014, a new report indicates. E-mails obtained by The Daily Dot reveal that London-based software developer Ibrahim Balic informed Apple on March 26 that he had successfully bypassed a “brute-force” security prevention measure, effectively allowing him to try over 20,000 password combinations on any iCloud account. Balic also…