It’s illegal to destroy instant messaging evidence after you receive notice of a lawsuit or during a trial.
The duty to preserve electronic evidence arises as soon as you have been served with a complaint or anticipate litigation.
In a lawsuit, you could wind up sharing the cost of electronic discovery with your opponent—even when it is the opposition’s IM and e-mail records that are sought.
Form a litigation response team to oversee the retention of evidence, the cessation of deletion, and the prompt response to discovery requests.