Malaysia’s national utility company, Tenaga Nasional Bhd (TNB), has suffered losses exceeding $1.11 billion (4.6 billion ringgit) due to illegal electricity usage by cryptocurrency miners between 2020 and August of this year. The Ministry of Energy and Water Transformation revealed that 13,827 premises were found to have illegally tapped power, primarily to mine bitcoin.
The financial loss represents a growing problem; a Malaysian government minister previously revealed in July 2024 that illegal crypto miners stole approximately $727 million in electricity between 2018 and 2023. As part of enforcement efforts, officials destroyed 2,022 seized equipment including as bitcoin mining machines lacking proper Energy Commission certification.
Read more: Malaysia Loses Over $700 Million Worth of Electricity to Illegal Crypto Miners, Says Minister
According to a Reuters report, Malaysian authorities have intensified enforcement efforts, with TNB working alongside the police, the communications regulator, the anti-graft agency, and other bodies to seize Bitcoin mining machines from implicated premises.
While cryptocurrency mining itself is not illegal in Malaysia, tampering with meters or bypassing connections constitutes a serious offense under the Electricity Supply Act. To combat the massive theft, TNB is deploying new measures. TNB has established a database containing records of owners and tenants suspected of electricity theft linked to mining activities.
The ministry noted this database serves as a critical internal reference for identifying suspicious premises and guiding inspection operations. Additionally, smart meters are being installed at electricity distribution substations to monitor consumption patterns and detect manipulation in real time, a move officials believe will strengthen oversight and reduce future losses.
The scale of the theft highlights the growing challenges faced by governments worldwide in balancing the rise of cryptocurrency mining with energy security. Malaysia’s crackdown underscores the financial and infrastructural risks posed by unauthorized mining operations.
- How much did Malaysia lose to illegal crypto mining? TNB reported losses of 4.6 billion ringgit ($1.11B) from 2020 to August 2025.
- How widespread is the problem? Authorities found 13,827 premises illegally tapping electricity, mainly for Bitcoin mining.
- Is crypto mining illegal in Malaysia? Mining itself is legal, but meter tampering and bypassing connections violate the Electricity Supply Act.
- What measures are being taken? TNB is deploying smart meters and a database to track and curb electricity theft nationwide.
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