Anthem hacked by Heartbleed?

This speculative blog post draws parallels between the Anthem breach and the earlier CHS incident, proposing that attackers may have exploited the Heartbleed OpenSSL vulnerability to gain VPN access and then moved laterally, escalated privileges, and deployed custom backdoors; the author emphasizes this is conjecture without direct evidence and cites contemporaneous reporting from Krebs, TrustedSec, and Mandiant.