Depermissioning Web3: a Permissionless Accountable RPC Protocol for Blockchain Networks

In blockchain networks, so-called "full nodes" serve data to and relay transactions from clients through an RPC interface. This serving layer enables integration of "Web3" data, stored on blockchains, with "Web2" mobile or web applications that cannot directly participate as peers in a blockchain...

A Security Framework for General Blockchain Layer 2 Protocols

Layer 2 L2 solutions are the cornerstone of blockchain scalability, enabling high-throughput and low-cost interactions by shifting execution off-chain while maintaining security through interactions with the underlying ledger. Despite their common goals, the principal L2 paradigms -- payment...

Malicious code in ton-payment-channels-example (npm)

--- -= Per source details. Do not edit below this line.=- Source: ghsa-malware e9e7497de28b982ff9a30a2d494d34eca9c190bba81a330f16ca8cdf7955e20e Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be...

MAL-2025-1181 Malicious code in ton-payment-channels-example (npm)

--- -= Per source details. Do not edit below this line.=- Source: ghsa-malware e9e7497de28b982ff9a30a2d494d34eca9c190bba81a330f16ca8cdf7955e20e Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be...

How Cybercriminals are Exploiting India's UPI for Money Laundering Operations

Cybercriminals are using a network of hired money mules in India using an Android-based application to orchestrate a massive money laundering scheme. The malicious application, called XHelper, is a "key tool for onboarding and managing these money mules," CloudSEK researchers Sparsh Kulshrestha,...

Disrupting Ransomware by Disrupting Bitcoin

Ransomware isnt new; the idea dates back to 1986 with the "Brain" computer virus. Now, its become the criminal business model of the internet for two reasons. The first is the realization that no one values data more than its original owner, and it makes more sense to ransom it back to them --...

PCI DSS for large organizations: A Coalfire perspective

As organizations grow, PCI DSS responsibilities become more complex. Logically, they gain more interconnected relationships internally and with third parties. Multiple payment channels, complex network architectures, and large inventories of devices in scope require preparation before performing...