From the article:
> Let's not criticize Cisco
> The company discovered these flaws following as part of its massive series of internal audits it started back in December 2015.
> At the time, security researchers found a backdoor account in Juniper software that could decrypt VPN traffic, and Cisco decided to hunt and root out any similar backdoors before attackers found them first.
> The company discovered many backdoors and hardcoded accounts in the past two years as part of internal audits and has received some pretty unfair criticism for its efforts.
> The most recent backdoors Cisco discovered was in March, when the company's engineers discovered two —one in Cisco's Prime Collaboration Provisioning (PCP) platform, and one in the IOS XE operating system.