Chainalysis Operation Lighthouse Targets Crypto-Linked CSAM
Chainalysis, a leader in blockchain analytics, has unveiled the results of Operation Lighthouse, a multi-day initiative aimed at disrupting crypto-enabled child sexual abuse material (CSAM) networks. Announced on August 25, 2026, the operation generated 14,300 investigative leads, identified 7,700 suspect accounts, and uncovered CSAM-linked activity spanning 125 countries. This marks a significant step forward in the fight against child exploitation, leveraging blockchain intelligence to trace illicit activity.
Conducted at the National Cyber-Forensics and Training Alliance (NCFTA) in New York, Operation Lighthouse brought together law enforcement agencies, private-sector firms, and specialized nonprofits. Participants collaborated to investigate 29,120 cryptocurrency addresses linked to over 100 CSAM platforms and forums, with actionable leads forming the foundation for future prosecutions.
A Coordinated Approach
Operation Lighthouse represents a model for public-private collaboration. Chainalysis partnered with nine law enforcement agencies, 13 private firms, and several nonprofits to convert months of blockchain intelligence into targeted action. Key private-sector participants included Binance, Coinbase, and payments company Block, all of which contributed compliance and investigative resources to the effort.
Blockchain transparency played a central role in these investigations. While CSAM-related activity constitutes a small fraction of overall crypto use, its prevalence has reportedly grown in recent years. Chainalysis' tools allowed investigators to follow on-chain transaction flows, linking suspect wallets to real-world offenders. This effort also highlighted the ongoing challenges posed by privacy-enhancing technologies like Monero and cross-chain laundering, which some offenders use to obfuscate their activity.
By the Numbers
The operation's scale is striking:
- Investigated 29,120 cryptocurrency addresses
- Generated 14,300 investigative leads
- Identified 7,700+ suspect accounts, including 16 registered sex offenders
- Suspects identified in 125 countries
These results underscore how blockchain intelligence enables global coordination. For instance, Europol and the UK’s National Crime Agency participated alongside the Australian Federal Police and the Royal Canadian Mounted Police, demonstrating a truly international response.
Blockchain’s Role in Combating CSAM
Chainalysis has long advocated for using blockchain analytics in criminal investigations. Its tools enable investigators to trace funds across multiple blockchains, identify laundering networks, and map connections between buyers, vendors, and intermediaries. While Bitcoin remains the most commonly used cryptocurrency for CSAM payments, offenders increasingly employ privacy coins like Monero to evade detection. Nevertheless, the inherent transparency of most blockchains gives investigators a valuable edge.
Earlier Chainalysis research highlights the scale of the problem. In 2023, more than 10,000 digital wallets were linked to CSAM vendor payments. By mid-2025, the company had identified the payment infrastructure of a major dark-web CSAM website, with activity dating back to 2022. These findings reinforce the need for sustained, multi-stakeholder efforts like Operation Lighthouse.
What’s Next?
Operation Lighthouse serves as a blueprint for future collaborative efforts. Prosecutorial outcomes from the operation are expected to extend into 2027, as law enforcement agencies pursue arrests and legal proceedings. Chainalysis plans to refine and replicate this model, addressing other illicit typologies alongside CSAM-related activity.
As the cryptocurrency ecosystem evolves, so too does its misuse. However, the transparency of blockchain technology, when paired with robust public-private collaboration, offers a powerful tool for dismantling harmful networks. Operation Lighthouse is a testament to what’s possible when stakeholders unite around a shared mission to protect vulnerable populations.