Thousands of students sitting A-level examinations have been disrupted after exam papers for physics were leaked online, prompting Cambridge International to cancel the affected tests and implement alternative grading measures. The breach was linked to unauthorized circulation of exam content reportedly originating in Pakistan, where authorities have reportedly launched a cybercrime investigation.

The leak involved the physics papers administered last week at various locations, including the United Kingdom, Europe, and the Middle East. Cambridge International confirmed that the compromised exams have been declared void. Students who sat these papers will receive assessed marks based on their performance in other modules rather than traditional exam results. Additionally, the planned physics paper scheduled for Wednesday has been replaced to prevent further issues.

This incident is part of a series of recent security breaches involving Cambridge International exams. Earlier in the month, papers for AS and A-level mathematics, as well as an AS computer science exam, were also leaked. Online forums such as Reddit and Discord have been inundated with images purporting to show content from this year’s exams, some of which appear to be authentic.

Tobias Eatough, an 18-year-old A-level candidate studying maths, physics, and biology, expressed frustration over the situation, saying he now faces retaking exams despite hoping to achieve grades required for a medical biosciences program at Imperial College London. "One of the papers that I felt went best has been cancelled, and they’re now going to assign me a mark, which is just completely unfair," Tobias said. He added that the disruption has complicated his preparations for other subjects.

The leak has sparked broader concern among educators and students. Sam Gower, a British mathematics teacher, has launched an online petition seeking assurances that university admissions will not be adversely affected by potential delays or changes to grades resulting from the retakes.

A Cambridge International spokesperson emphasized the rarity of such incidents, stating, "We have acted swiftly to put alternative measures in place for impacted students. It remains rare for the integrity of an exam to be compromised." The board confirmed it is cooperating with law enforcement and other partners in an ongoing investigation.

Cambridge International qualifications are offered across nearly 5,000 schools in 138 countries, including some independent schools in the UK. The board is currently working to finalize arrangements for replacement exams and to support affected candidates as the investigation continues.