GCHQ launches Cryptoy mobile app to teach cryptography

Cryptoy is the free educational app about cryptography designed by GCHQ for use by secondary school students and their teachers.

The British Intelligence agency GCHQ has launched “Cryptoy”, an Android mobile app that was designed to encourage youngsters to tackle emerging cyber security threats, the Agency made it available to download today.

The Cryptoy mobile app was developed by STEM (science, technology, engineering and maths) students on an industrial year placement at GCHQ and was introduced and announced by the GCHQ at the Cheltenham Science Festival.

The app was Launched at the third anniversary of the UK Cyber Security Strategy to demonstrate the great interest of the Government in the cyber security.

The app is designed mainly to induce youngsters between the ages of 14 and 16 into trying their abilities in cryptography and code-breaking, according to GCHQ the mobile Cryptoy app will help its users to explore the fundamentals of encryption methods, teach the codes of the past, and will allow the creation of their own encrypted messages.

Cryptoy is a fun, free, educational app about cryptography, designed by GCHQ for use by secondary school students and their teachers.” states a blog post published by the Agency.”

The Cryptoy mobile app allows its users to share encoded messages, via social media or email, by using four different cypher schema :

  • Shift
  • Substitution
  • Vigenère
  • Enigma

The messages can be shared with friends that can use the mobile app to decoded them. The GCHQ has developed the mobile app to introduce young people to subjects like computer science, cryptography and maths.

 “If we’re going to get the next generation of security experts, we need to be encouraging them to take up these subjects,” said a spokesperson from GCHQ at the conference. “Building maths and cyber skills in the younger generation is essential for maintaining the cyber security of the UK and growing a vibrant digital economy,” Robert Hannigan, Director GCHQ, said. “That is why I am keen for GCHQ to give something back through its work with school and universities.”

“In particular, the Cryptoy app is a colourful, interactive way for students and their teachers to explore the fascinating world of cryptography. The app was developed by GCHQ’s industrial placement students and trialled at a number of science fairs. I hope it will inspire further study of this key topic, which has played such an important part in our past and is an invaluable part of our future.”

Of course, many skeptics have thought that the app is a surveillance tool, but the GCHQ replied that the Cryptoy app only asks for very limited permissions and is not at all a spy tool.

The Cryptoy app is available for free download on Google Play store, the iOS version is announced for release in 2015.

Pierluigi Paganini

(Security Affairs –  GCHQ, Cryptoy mobile app)

Pierluigi Paganini

Pierluigi Paganini is member of the ENISA (European Union Agency for Network and Information Security) Threat Landscape Stakeholder Group and Cyber G7 Group, he is also a Security Evangelist, Security Analyst and Freelance Writer. Editor-in-Chief at "Cyber Defense Magazine", Pierluigi is a cyber security expert with over 20 years experience in the field, he is Certified Ethical Hacker at EC Council in London. The passion for writing and a strong belief that security is founded on sharing and awareness led Pierluigi to find the security blog "Security Affairs" recently named a Top National Security Resource for US. Pierluigi is a member of the "The Hacker News" team and he is a writer for some major publications in the field such as Cyber War Zone, ICTTF, Infosec Island, Infosec Institute, The Hacker News Magazine and for many other Security magazines. Author of the Books "The Deep Dark Web" and “Digital Virtual Currency and Bitcoin”.

Recent Posts

Fintech firm Figure disclosed data breach after employee phishing attack

Fintech firm Figure confirmed a data breach after hackers used social engineering to trick an…

20 hours ago

U.S. CISA adds a flaw in BeyondTrust RS and PRA to its Known Exploited Vulnerabilities catalog

The U.S. Cybersecurity and Infrastructure Security Agency (CISA) adds a flaw in BeyondTrust RS and…

21 hours ago

Suspected Russian hackers deploy CANFAIL malware against Ukraine

A new alleged Russia-linked APT group targeted Ukrainian defense, government, and energy groups, with CANFAIL…

1 day ago

New threat actor UAT-9921 deploys VoidLink against enterprise sectors

A new threat actor, UAT-9921, uses the modular VoidLink framework to target technology and financial…

2 days ago

Attackers exploit BeyondTrust CVE-2026-1731 within hours of PoC release

Attackers quickly targeted BeyondTrust flaw CVE-2026-1731 after a PoC was released, enabling unauthenticated remote code…

2 days ago

Google: state-backed hackers exploit Gemini AI for cyber recon and attacks

Google says nation-state actors used Gemini AI for reconnaissance and attack support in cyber operations.…

2 days ago

This website uses cookies.