Although a law enforcement source told the Post that the investigation was fully by the book, Secret Service agent Samuel Ivanovich said in court testimony that another agent “had to shut down his computer” to stop the malware. This has cybersecurity experts concerned.

The Secret Service, citing the ongoing investigation, declined to comment on the gap between the agents’ described behavior and what cybersecurity pros cited as the usual practices for malware investigations.

Read the full article from The Washington Post.