Latest cybersecurity reporting from selected sources.

Also, Arch Linux Attack, Estonia Quarantines Russian Emails, Joomla FlawThis week, ShinyHunters leaked alleged Madison Square Garden data, a U.S. senator pressed CISA on regional staffing cuts, an Arch Linux supply-chain attack, Mackay Sugar began recovery from a ransomware attack, Novo Nordisk faced dueling breach claims - and more compelling cybersecurity news.

Finnish Border Guard Seize Cargo Ship Suspected of Causing DisruptionFinnish police on Wednesday seized a cargo ship sailing from Russia suspected of rupturing an undersea telecommunication cable connecting Helsinki to Estonia, a region of the Baltic Sea that is the site of a slew of suspected Russian cable sabotage incidents.

Europe Targets Officers of Unit 29155 of the Russian Main Intelligence DirectorateThe European Union sanctioned on Monday three officers of a Russian military intelligence unit for their role in cyberattacks targeting Estonia in 2020. The sanctions are tied to the unit's 2020 hack of the Estonian government departments and the exfiltration of sensitive documents.