Yesterday ICANN took down its top-level domain application system (TLS), which was being used by companies hoping to secure custom web address suffixes like ".google", because of an unidentified technical issue. It turns out the issue was security-related — and applicants may have had some of their data compromised. In a blog post today, ICANN COO Akram Atallah stated that the glitch "has allowed a limited number of users to view some other users' file names and user names in certain scenarios," and that ICANN took the system offline "to protect applicant data." It's an interesting revelation as just yesterday an ICANN spokesperson took steps to reassure users by telling Domain Incite that since no data was lost, "it should not pose problems for existing applicants." ICANN has yet to provide further details on the matter, but it has pledged to provide updates on its site — though that will likely be of a little comfort to those wondering exactly what information may have been revealed, and to what parties. The TLS is scheduled to go back online Wednesday morning.