Instead, they got inside by sneaking malicious code into a software update pushed out to thousands of government agencies and private companies.
It wasn’t surprising that hackers were able to exploit vulnerabilities in what’s known as the supply chain to launch a massive intelligence gathering operation. U.S. officials and cybersecurity experts have sounded the alarm for years about a problem that has caused havoc, including billions of dollars in financial losses, but has defied easy solutions from the government and private sector.
