Brian Krebs wrote on his blog that he found companies and organizations that failed to password protect WebEx meetings, which allowed "anyone to join daily meetings about apparently internal discussions and planning sessions."
Meeting schedules for organizations were available through WebEx's "Event Center," he wrote.
Cisco has a variety of options for WebEx that are intended to accommodate sensitive meetings and ones intended for the public.
For example, Cisco requires a password to be set by default for a meeting, but that option can be turned off, wrote Aaron Lewis, who works in global social media marketing, on a company blog.
"The most secure meetings will always be protected by a complex password," Lewis wrote.