Bitcoin thieves stole $1.1B using fake bird noises: Now Malaysia hunts heat signatures from the sky

Malaysian authorities are intensifying their hunt for illegal Bitcoin mining operations, which have resulted in approximately $1.1 billion in electricity theft between 2020 and August 2025. The crackdown involves multi-layered surveillance, including thermal drones sweeping for heat signatures, handheld sensors detecting irregular power use, and monitoring smart meters for anomalies. Miners employ sophisticated tactics to evade detection, such as using fake bird noises to mask machinery, installing heat shields, and setting up heavy security.

The scale of the issue is significant, with the state-owned energy company, Tenaga Nasional (TNB), reporting a nearly 300% rise in crypto-linked electricity theft over six years. The Deputy Energy Minister, Akmal Nasrullah Mohd Nasir, chairs a special committee considering an outright ban on Bitcoin mining, even when power is paid for, citing risks to grid stability, including overloaded transformers and blackouts. He suggests the operations are run by organized criminal syndicates due to their mobility.

The economic incentive stems from Malaysia's historically low, subsidized electricity tariffs. Miners bypass meters by tapping directly into power lines to maximize profits. While laws allow for heavy fines and imprisonment, enforcement is complicated because equipment is often registered to shell entities. This situation places Malaysia within a global pattern where miners migrate to jurisdictions offering cheap, subsidized power, threatening the country's decarbonization goals and data center expansion plans.

(Source：CryptoSlate)