Bitcoin Forum

Computer users operating on the Mac OS X platform are safer from harm compared to their Windows-using counterparts. With a much smaller market share, hackers are not targeting OS X users as often as they could, although that doesn’t mean the platform is completely secure. Security tool Gatekeeper is still vulnerable, despite a recent patch released by Apple. Bitcoin users are advised to remain careful when installing new applications until this security flaw has been patched properly.

http://bitcoinist.net/ongoing-os-x-gatekeeper-vulnerability-puts-bitcoin-users-at-risk/