Singaporean Web3 angel investor Mark Koh suffered a loss of at least $100,000 in cryptocurrency after downloading a fake game launcher containing malware. Koh, an early investor in Polygon and co-founder of anti-fraud organization RektSurvivor, had multiple crypto wallets emptied within 24 hours. He emphasized that the attack involved credential theft at the operating system level, which bypassed strong passwords and two-factor authentication. Koh has reported the incident to the police and urged the public to avoid downloading software from unknown sources, not to disclose seed phrases, and to refrain from storing all assets in a single wallet.