First it was Abbe Lowell of Norton Rose Fulbright, who was lured into a public email exchange on Monday with someone impersonating his one-of-a-kind client, Jared Kushner. Then, on Wednesday, Wilmer, Cutler, Pickering, Hale and Dorr helped to publicize secret investigations involving its client PepsiCo after the firm accidentally emailed details about the probes to a Wall Street Journal reporter.

Email may be essential for lawyers, but this week it felt like their worst enemy.