Four general counsel from Boston-area companies and organizations, representing Emerson College, health care provider Harvard Pilgrim Health Care Inc. and technology companies Cognex Corp. and Waters Corp., dished about outside counsel’s mistakes at a recent legal forum.

The general counsel spoke at a Dec. 4 breakfast event in Boston on the topic “What law firms should know in an ever-changing economy.” It was attended by about 75 local attorneys and legal professionals.