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WaterPlum: North Korean hackers steal $10.7M via fake job interviews
International security agencies from Japan, the United States, Australia, and Germany have issued a joint advisory regarding a North Korean-linked cyber campaign known as WaterPlum, or “Contagious Interview.” The operation targets software developers, web designers, and specialists in blockchain, Web3, and artificial intelligence through fraudulent job recruitment processes.
Between December 2025 and July 2026, the group reportedly infected at least 30,000 devices across more than 100 countries. By impersonating recruiters from legitimate technology and crypto firms on social media and job boards, the attackers lure candidates into technical interviews. During these sessions, victims are instructed to download malicious files disguised as coding tests or video-conferencing troubleshooting tools. These files deploy malware families such as BeaverTail, InvisibleFerret, and OtterCookie to steal sensitive data, including browser credentials, screenshots, and cryptocurrency wallet private keys.
The campaign has successfully compromised over 7,000 cryptocurrency wallets, siphoning at least $10.71 million in digital assets to North Korea. Authorities link the WaterPlum group to the 313th General Bureau of the Munitions Industry Department under the Workers' Party of Korea. The operation is part of a broader North Korean strategy to generate foreign currency and place IT workers in foreign organizations to bypass international sanctions.
Entities
313th General Bureau of the Munitions Industry Department · Australian Signals Directorate · FBI · Japan National Police Agency · Munitions Industry Department · North Korea · Waterplum · Workers' Party of Korea
Claims
What the coverage asserts, and how many sources carry each claim.
- [● 2 SOURCES] Authorities in Japan dismantled a laptop farm used to make remote operators appear as if they were locally based. www.blogspan.net · www.blocktempo.com
- [● 15 SOURCES] More than 30,000 devices were infected across over 100 countries. www.ad-hoc-news.de · www.blogspan.net · phocapblockchain.net · www.cryptobreaking.com · infosecu.technews.tw · +10 more
- [● 15 SOURCES] The group stole at least $10.71 million in cryptocurrency. www.blogspan.net · www.ibtimes.co.uk · phocapblockchain.net · www.cryptobreaking.com · infosecu.technews.tw · +10 more
- [● 15 SOURCES] Over 7,000 cryptocurrency wallets were affected between December 2025 and July 2026. phocapblockchain.net · www.cryptobreaking.com · infosecu.technews.tw · www.spacemoney.com.br · www.ad-hoc-news.de · +9 more
- [● 15 SOURCES] The North Korean-linked cyber group WaterPlum (also known as Contagious Interview) conducted the operation. www.ad-hoc-news.de · www.blogspan.net · www.ibtimes.co.uk · phocapblockchain.net · www.cryptobreaking.com · +10 more
- [● 3 SOURCES] The attackers used AI face-swapping technology to impersonate employers during video calls. www.ad-hoc-news.de · www.ibtimes.co.uk · infosecu.technews.tw
- [● 13 SOURCES] The group is attributed to the 313th General Bureau of the Munitions Industry Department under the Workers' Party of Korea. www.blogspan.net · phocapblockchain.net · www.cryptobreaking.com · infosecu.technews.tw · www.spacemoney.com.br · +8 more
- [● 6 SOURCES] The campaign utilized specific malware families including BeaverTail, InvisibleFerret, and OtterCookie. www.blogspan.net · infosecu.technews.tw · www.blocktempo.com · bitnewsbot.com · www.cryptobreaking.com