On Thursday, hackers defaced a Russian Space Research Institute website and leaked files that they allege are stolen from Roscosmos, the Russian space agency. Their message? “Leave Ukraine alone else Anonymous will f*ck you up even more.” Meanwhile a DDoS attack pummeled Russia’s .ru “top level domain,” with the aim of essentially cutting off access to all URLs that end in .ru. These are just the latest incidents in a surge of hacktivism in support of Ukraine.

Protests against Russia’s war of choice with Ukraine have been held around the world, including in 48 Russian cities. The global community has raised millions of dollars for Ukraine through cryptocurrency donations, and private companies from Shell and BP to Apple have temporarily or permanently pulled out of the Russian market. Amidst the havoc, hacktivists are joining the cacophony in an attempt to make a statement and advance their cause.

For years, Russia has barraged Ukraine with an array of intrusive and destructive cyberattacks. And the war opened in recent days with Russian campaigns to hit Ukrainian institutions with DDoS attacks and awaken data-wiping malware on hundreds of Ukrainian computers. Ukraine itself has launched an effort to amass a volunteer “IT Army” of civilian hackers from around the world to aid its fight, alongside traditional conscription. Still, as the back-and-forth has escalated into violence in the region and NATO countries have battered Russia with crippling economic sanctions, hacktivist data leaks, website defacements, and cyberattacks have become one of the most visible, if not necessarily the most impactful, digital battlegrounds.

The mix of hacktivism and active warfare creates a messy picture, experts say. Some caution that hacktivism could lead to unintended escalations or endanger intelligence operations. Others argue that even more than in peacetime, periods of active combat render hacktivism ineffectual and largely just distracting.

“It’s a high-intensity armed conflict between two states with heavy kinetic warfare, civilian casualties, and physical destruction,” says Lukasz Olejnik, an independent cybersecurity researcher and former cyberwarfare adviser to the International Committee of the Red Cross. “Let’s be honest here, what may hacktivism change in this picture? Besides, most of the reports of hacktivism are unverifiable at best. They are highly amplified on social media and traditional electronic media, but what is the actual effect?”

If nothing else, the hacktivist efforts have been very visible. As Russia began its invasion of Ukraine on Thursday, the hacking collective Anonymous tweeted that it was “officially in cyber war against the Russian government.” The group claimed credit for attacks that briefly knocked out access to a number of sites, including that of the state-controlled Russian news agency RT, Russian oil giant Gazprom, the Kremlin itself, and other Russian government agencies. A marine tracking data defacement resulted in Putin’s yacht being renamed “FCKPTN” in maritime tracking data. Soon after, two groups, known as “Anonymous Liberland” and “the Pwn-Bär Hack,” leaked roughly 200 gigabytes worth of alleged emails from the Belarusian weapons manufacturer Tetraedr.

https://arstechnica.com/?p=1838378