Today a friend alerted me about a critical security update for Magento - SUPEE-5344. I didn't see any articles about this patch on major IT websites. Even if I google for this update, I see SE pages about this update, but no Magentocommerce information, except then the download page. The Magento commerce forums are read only.
This makes me wonder - where can I find alerts, where can I subscribe to a mailing list?