Law Enforcement Seizes Joker's Stash — Stolen Credit Card Marketplace

The US Federal Bureau of Investigation FBI and Interpol have allegedly seized proxy servers used in connection with Blockchain-based domains belonging to Joker's Stash, a notorious fraud bazaar known for selling compromised payment card data in underground forums. The takedown happened last week ...

Joker's Stash Carding Site Taken Down

Joker’s Stash, the carding site where cybercriminals hawk their payment-card wares, has suffered a blow after law enforcement apparently seized one of its domains. Joker’s Stash is a popular cybercriminal destination that specializes in trading in payment-card data, offering millions of stolen...

Security Bulletin: IBP javaenv and dind images

Summary Versions of IBP images javaenv and dind before 2.5.1 included a version of gradle that depended upon vulnerable Apache libraries. Gradle is a build system, intended to aid in building chaincode, though not required for building chaincode. Vulnerability Details CVEID: CVE-2020-1953...

Security Bulletin: Upgrade javaenv:2.2 to address Gradle oauth authentication concerns.

Summary The version of Gradle shipped in the Fabric java chaincode environment image version 2.2. javaenv.2.2 depends on a vulnerable version of the google ouatth client. Vulnerability Details CVEID: CVE-2020-7692 DESCRIPTION: Google APIs google-oauth-java-client could allow a remote attacker to...

On Blockchain Voting

Blockchain voting is a spectacularly dumb idea for a whole bunch of reasons. I have generally quoted Matt Blaze: Why is blockchain voting a dumb idea? Glad you asked. For starters: It doesnt solve any problems civil elections actually have. Its basically incompatible with "software independence",...

Upcoming Speaking Engagements

This is a current list of where and when I am scheduled to speak: I’m speaking at the ISC² Security Congress 2020, November 16, 2020. I’ll be on a panel at the OECD Global Blockchain Policy Forum 2020 on November 17, 2020. The panel is called "Deep Dive: Digital Security and Distributed Ledger...

Twinned Tree Vulnerability Has Logic Flaw Vulnerability

Overview: Merkle Tree MT is one of the basic algorithms used in blockchain technology to safeguard data against tampering and fast verification. Due to problems in the implementation of some MT construction algorithms, it allows attackers to tamper with part of the block data without affecting th...

Bitcoin Core Security Breach

Bitcoin Core is an open source client for verifying the validity of blockchain transactions. A security vulnerability exists in Bitcoin Core. The vulnerability stems from the occurrence of a denial of service...

Upcoming Speaking Engagements

This is a current list of where and when I am scheduled to speak: Ill be speaking at Cyber Week Online, October 19-21, 2020. Ill be speaking at the IEEE Symposium on Technology and Society virtual conference, November 12-15, 2020. Ill be keynoting the 2020 Conference on Cyber Norms on November 12...

Bitcoin: Multiple vulnerabilities

Background Bitcoin Core consists of both “full-node” software for fully validating the blockchain as well as a bitcoin wallet. Description Multiple vulnerabilities have been discovered in Bitcoin. Please review the CVE identifiers referenced below for details. Impact Please review the referenced...

360lock Smart Lock Review

Two years ago I helped kick start a smart lock, the 360lock. It finally arrived this week. It has different modules like a keybox below and a bike chain. I originally live tweeted the hack on Tuesday Sep 8, 2020. So, how good is it? Blockchain integration! According to the website the 360lock has...

mycoin (=1.0.0), simple-blockchain-implement (>=1.0.0 <=1.0.4) potentially affected by unknown CVE via crytpo-js (=0.0.1-security)

crytpo-js NPM version =0.0.1-security is affected by a known vulnerability. The following packages have a transitive dependency on crytpo-js and may be impacted: - mycoin =1.0.0 - simple-blockchain-implement =1.0.0, =1.0.4 Source cves: unknown CVE Source advisory: OSV:GHSA-M4FQ-XH7W-JHFM...

US Postal Service Files Blockchain Voting Patent

The US Postal Service has filed a patent on a blockchain voting method: Abstract: A voting system can use the security of blockchain and the mail to provide a reliable voting system. A registered voter receives a computer readable code in the mail and confirms identity and confirms correct ballot...

US Postal Service Files Blockchain Voting Patent

The US Postal Service has filed a patent on a blockchain voting method: Abstract: A voting system can use the security of blockchain and the mail to provide a reliable voting system. A registered voter receives a computer readable code in the mail and confirms identity and confirms correct ballot...

US Postal Service Files Blockchain Voting Patent

The US Postal Service has filed a patent on a blockchain voting method: Abstract: A voting system can use the security of blockchain and the mail to provide a reliable voting system. A registered voter receives a computer readable code in the mail and confirms identity and confirms correct ballot...

Hyperledger: The “payload” Field of Transactions in a Block Reveals the Private Data to All Peers

To whom it may concern, We are a research group conducting research on Hyperledger Fabric 2.0. We find a design flaw about the “payload” field of transactions, which can reveal the Private Data to all peers in one channel. When a client invokes a function to read the private data, the is stored i...

Doki Backdoor Infiltrates Docker Servers in the Cloud

A fresh Linux backdoor called Doki is infesting Docker servers in the cloud, researchers warn, employing a brand-new technique: Using a blockchain wallet for generating command-and-control C2 domain names. Doki however is meant to provide a persistent capability for code-execution on an infected...

Undetectable Linux Malware Targeting Docker Servers With Exposed APIs

Cybersecurity researchers today uncovered a completely undetectable Linux malware that exploits undocumented techniques to stay under the radar and targets publicly accessible Docker servers hosted with popular cloud platforms, including AWS, Azure, and Alibaba Cloud. Docker is a popular...

Undetectable Linux Malware Targeting Docker Servers With Exposed APIs

Cybersecurity researchers today uncovered a completely undetectable Linux malware that exploits undocumented techniques to stay under the radar and targets publicly accessible Docker servers hosted with popular cloud platforms, including AWS, Azure, and Alibaba Cloud. Docker is a popular...

CompTIA Certification Prep Courses – Get Lifetime Access @ 98% Discount

In the world of professional IT, recruiters look for certificates as an important criterion for eligibility and assessing skills. Any IT professional with résumé that includes CompTIA certificates tends to rise up the pile. Of course, there are many different CompTIA exams you can choose from bas...