Mexican authorities have uncovered a suspected illegal cryptocurrency mining operation hidden in the mountainous Sierra Norte region of Puebla, raising concerns over the growing use of digital assets by organized crime groups.
The facility, located near a hydroelectric system, contained around 300 graphics processing units (GPUs), 80 medium-voltage terminals and eight satellite antennas. Authorities are investigating whether the operation was illegally drawing electricity from nearby infrastructure and whether it may have been used to launder illicit funds.
The mining site was discovered after authorities were alerted by its unusually high electricity consumption and the loud mechanical noise generated by hundreds of computers. Residents said the sound could be heard from about one kilometer away, despite the facility being roughly twice that distance from the nearest village.
Security analyst David Saucedo said the operation appeared to require significant technical expertise and financial backing, potentially pointing to involvement by a well-funded criminal organization. Mexico’s federal attorney’s office declined to comment, citing an ongoing investigation.
Cryptocurrency mining requires large amounts of electricity to operate and cool specialized computers. Experts say this makes stolen or extremely cheap electricity particularly attractive to illicit operators.
According to blockchain analytics firm Chainalysis, illicit cryptocurrency transactions more than doubled in 2025, with criminally linked addresses receiving an estimated $154 billion, compared with $59 billion the previous year.
The Puebla discovery is reportedly the fourth cryptocurrency mining operation uncovered in the area since early 2025. Authorities are investigating whether additional hidden operations exist near the hydroelectric facility.
Experts warn that as cryptocurrency adoption grows globally, criminal groups are likely to expand their use of digital assets for money laundering and other illicit activities. At the same time, law enforcement agencies are developing increasingly sophisticated tools to trace cryptocurrency transactions and disrupt organized crime networks.
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