This notification appears on an office workstation screen:

🚨 CRITICAL SYSTEM WARNING 🚨

Your company's databases and local files have been encrypted.

A workstation screen displaying a red hazard warning banner at the top, a digital skull icon in the center, and a countdown timer showing hours, minutes, and seconds remaining.

What happened? All office databases, documents, and spreadsheets on this system are now completely locked.

How can I restore my files? You must purchase our private decryption software tool.

How much time do I have? Exactly 72 hours before the decryption key is permanently destroyed.

How to pay: Send 0.15 BTC to the wallet address: bc1qxy2kgdygjrsqtzq2n0yrf2493p83.

Cybersecurity Questions

Practise Edexcel GCSE Computer Science Cybersecurity with exam-style questions for GCSE Computer Science. 41 questions covering Malware threats and cyberattack methods and Protecting digital systems and data, matched to the Edexcel GCSE Computer Science (1CP2) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.