NFTs explained: daylight robbery on the blockchain

Did you hear about the JPG file that sold for $69 million? I’ll give you some more detail, the JPG file is a piece of digital art made by Mike Winkelmann, the artist known as Beeple. The file was sold on Thursday by Christie’s in an online auction for $69.3 million. This set a record for artwork...

Illegal Content and the Blockchain

Security researchers have recently discovered a botnet with a novel defense against takedowns. Normally, authorities can disable a botnet by taking over its command-and-control server. With nowhere to go for instructions, the botnet is rendered useless. But over the years, botnet designers have...

5G Promises to Increase Adoption of Cryptocurrency Investing

By Owais Sultan Blockchain has been efficient in supporting cryptocurrency alone, but its combination with 5G will greatly enhance cryptocurrency mining. This is a post from HackRead.com Read the original post: 5G Promises to Increase Adoption of Cryptocurrency Investing...

Botnet Abusing Bitcoin Blockchain To Evade Detection

By Deeba Ahmed Cybercriminals are abusing Bitcoin transactions to carry out illegal crypto mining operations while staying under the radar. This is a post from HackRead.com Read the original post: Botnet Abusing Bitcoin Blockchain To Evade Detection...

Bitcoins, Blockchains, and Botnets

A recent piece of malware from a known crypto mining botnet campaign has started leveraging Bitcoin blockchain transactions in order to hide its backup C2 IP address. It's a simple, yet effective, way to defeat takedown attempts...

Bitcoins, Blockchains, and Botnets

A recent piece of malware from a known crypto mining botnet campaign has started leveraging Bitcoin blockchain transactions in order to hide its backup C2 IP address. It's a simple, yet effective, way to defeat takedown attempts...

Italy CERT Warns of a New Credential Stealing Android Malware

Researchers have disclosed a new family of Android malware that abuses accessibility services in the device to hijack user credentials and record audio and video. Dubbed "Oscorp" by Italy's CERT-AGID and spotted by AddressIntel, the malware "induces the user to install an accessibility service wi...

Security Bulletin: Upgrade to IBP v2.5.1 to address recent concerns/issues with Golang versions other than 1.14.12

Summary There were several security problems found with various/other releases of Golang. We have moved the Golang provided in IBP components and also the Golang used to compile Go-based components in IBP to version 1.14.12. Vulnerability Details CVEID: CVE-2020-28366 DESCRIPTION: Golang Go could...

CVE-2020-11093

Hyperledger Indy Node is the server portion of a distributed ledger purpose-built for decentralized identity. In Hyperledger Indy before version 1.12.4, there is lack of signature verification on a specific transaction which enables an attacker to make certain unauthorized alterations to the...

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 ...

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...