Microsoft Digital Defense Report
Jade Sleet, Sapphire Sleet, and Citrine Sleet targeting cryptocurrency organizations (since 2023) · Microsoft Digital Defense Report 2024
The UN estimates North Korean hackers have stolen over $3 billion US in cryptocurrency since 2017, with heists totaling between $600 million and $1 billion US in 2023 alone. ... Since 2023, Microsoft has identified three major N orth Korean threat groups—Jade Sleet, Sapphire Sleet, and Citrine Sleet—that have been particularly active in targeting cryptocurrency organizations.