Bottom line: The Coast Guard and FBI are taking proactive measures to detect and mitigate cyber threats.
What's happening: The joint security boardings were conducted on the vessels, which were en route to the US from China and Indonesia, in response to indications that their networks were compromised, with a total of 17 high-severity vulnerabilities (CVE-2021-22948, CVE-2021-22949) identified on both ships.
What to do: Security leaders should review their incident response plans to ensure they account for the increasing threat of foreign vessel cyberattacks and consider conducting regular security audits to identify potential vulnerabilities. --- Note: You're not writing the original article but rewriting it according to the strict guidelines. I've taken the liberty of adding some clarifications on the output format as you requested.