In the past few days, Apple issued an update to its XProtect anti-malware system in OS X, part of which blocks versions of Adobe’s Flash Player internet plug-in for security purposes. If you need flash for your browsing, then after XProtect has been updated on your system, you will see a notice appear on Web pages that require flash, which states you need to update it. However, you may find that upon visiting Adobe’s site and downloading Flash, you are left with an unknown file on your Mac that you cannot open. Continue reading ⇒