GCHQ Cryptoy App | Breaking Cybersecurity News | The Hacker News

The UK's Signals Intelligence and Cyber Security agency GCHQ has launched its first ever puzzle book, challenging researchers and cryptographers to crack codes for charity. Dubbed " The GCHQ Puzzle Book ," the book features more than 140 pages of codes, puzzles, and challenges created by expert code breakers at the British intelligence agency. Ranging from easy to complex, the GCHQ challenges include ciphers and tests of numeracy and literacy, substitution codes, along with picture and music challenges. Writing in the GCHQ Puzzle Book's introduction, here's what GCHQ Director, Robert Hannigan says: "For nearly one hundred years, the men and women of GCHQ, both civilian and military, have been solving problems. They have done so in pursuit of our mission to keep the United Kingdom safe. GCHQ has a proud history of valuing and supporting individuals who think differently; without them, we would be of little value to the country. Not all are geniuses ...

GCHQ has finally released the solution to their head spinning Xmas Puzzle , after all, the participants failed to reach the final answer. GCHQ had released a crypto puzzle, dubbed Xmas Puzzle , on 9th December in the form of a Christmas Card that went viral online soon after its release. Nearly 600,000 people shot a "Go" for the challenge since early December, but only 30,000 had made it reach the final stage. The puzzle got popped up with a grid-shading Nonogram that resulted in the formation of a QR Code containing a hint to unlock the next level challenges. Xmas Puzzle prolonged to various topics like Web Link Maze, Word & Numeric Puzzle, Graph Theory and other Cipher Dilemmas. Some of the questions also intrigued on entertaining topics like Lord of the Rings, Ducks, Chess, French, and Semaphores. Who Created Crypto 'Xmas Puzzle'? This brainstorming puzzle was created by a small team of GCHQ Cryptographers under the GCHQ director Robert Han...

British government surveillance agency GCHQ – counterpart of NSA – has fired-up another debate over the Internet by launching Android application to encourage teenagers to tackle emerging cybersecurity threats. The newly launched Android app , dubbed " Cryptoy ", was developed by STEM (science, technology, engineering and maths) students on an industrial year placement at GCHQ. The Cryptoy app was highly appreciated and liked by GCHQ at the Cheltenham Science Festival that they made it available to download today. The app is designed mainly to tempt youngsters between the ages of 14 and 16 into trying their hand in cryptography and code-breaking, but can be used by anyone interested in cryptography. According to GCHQ , Cryptoy app will help users to understand basic encryption methods, teach the codes of the past, and create their own encrypted messages. The app allows users to share these encoded messages by using four code-breaking techniques – Shift, Subs...

If you invite guest users into your Entra ID tenant, you may be opening yourself up to a surprising risk.  A gap in access control in Microsoft Entra's subscription handling is allowing guest users to create and transfer subscriptions into the tenant they are invited into, while maintaining full ownership of them.  All the guest user needs are the permissions to create subscriptions in their home tenant, and an invitation as a guest user into an external tenant. Once inside, the guest user can create subscriptions in their home tenant, transfer them into the external tenant, and retain full ownership rights. This stealthy privilege escalation tactic allows a guest user to gain a privileged foothold in an environment where they should only have limited access. Many organizations treat guest accounts as low-risk based on their temporary, limited access, but this behavior, which works as designed, opens the door to known attack paths and lateral movement within the resource t...