Latest cybersecurity reporting from selected sources.

Researcher: If Exploited, Bug Could Crash Hospital Medical Imaging SystemsThe Cybersecurity Infrastructure and Security Agency is warning of a high severity in Grassroots DICOM, an open-source library commonly used for medical imaging products, that if exploited could allow an attacker to send a specially crafted file resulting in a denial-of-service situation.

Top Lawmaker Urges White House to Review Foreign Influence in Open-Source CodeA top Republican in the U.S. Senate warned the White House that foreign adversaries are exploiting trusted open-source software used across federal networks and defense systems, urging the National Cyber Director to lead efforts to monitor contributors and reduce supply chain risk.

Also: Ransomware Hackers Demand BaguettesThis week, Chinese spying, Italian hacking scandal, an FBI warning and Okta fixed a bug. Google mandated MFA, zero days in PTZOptics and a Mexican airport didn't pay ransom. Cybercriminals demanded baguettes, breach lettersin Ohio and Germany will shield white hats. The Italian DPA rebuked a bank.

Russian Hackers Using Open-Source Malware on Popular Messaging Apps, Report SaysUkraine's Computer Emergency Response Team is warning in an April report that a Russian hacking group known as UAC-0184 is using open-source malware to target Ukrainian soldiers on popular messaging apps such as Signal, as concerns grow over the Kremlin’s advanced hacking capabilities.

Fresh Social Engineering Attacks Resemble Tactics Used Against XZ Utils MaintainerMajor open-source software projects are warning that more pieces of code than XZ Utils may have been backdoored by attackers, based on ongoing supply-chain attack attempts that have targeted "popular JavaScript projects," apparently seeking to trick them into sharing code maintainer rights.