Researchers warn that U.S. firms are being targeted with legitimate – but trojanized – documents that are often socially engineered to a tee.
A hacking group with ties to North Korea has been targeting U.S. entities with malicious documents as it works to hide its tracks better, according to research from Maryland-based cybersecurity firm Prevailion.
North Korea-linked hackers have expanded their campaign to spy on experts researching nuclear deterrence, North Korea’s nuclear submarine program and North Korean economic sanctions, according to research from Prevailion.