Leaks aren’t handled with one blanket rule. If it happens before the exam starts, a board can replace the paper with a backup. If it happens after some centres have already sat it, the investigation focuses on who shared it and whether the results were skewed. Your best move is boring but effective: ignore rumours and keep revising the syllabus—losing focus is the real risk.

Every exam season, rumours spread on WhatsApp and social media claiming that a paper has been leaked. Sometimes they are true. Sometimes they are not. Either way, the panic that follows is almost always worse than the situation itself.

This post is not about rumours. It is a straightforward guide to what exam leaks actually are, how Cambridge International Education (CIE) responds when one is confirmed, and — most importantly — what it means for your grades and your future.

If you are sitting IGCSE or A-Level exams this June, this is worth reading before you hear anything on social media.

What Is an Exam Leak?

The Definition

An exam leak happens when a question paper is accessed or shared before students are supposed to sit it. This could mean a full paper circulating online, or just a few questions being shared in a group chat hours before the exam.

Not every claim of a leak is real. According to Save My Exams, many so-called leaks turn out to be hoaxes — old papers being shared as if they are new, or completely made-up content designed to cause panic. Exam boards verify every report before taking action.

Why It Matters

Exams are fair because every student sits the same paper, under the same conditions, at the same time. When that is broken, some students may have an advantage. That is what exam boards are designed to prevent — and it is why they take every report seriously.

How Cambridge Finds Out About a Leak

Cambridge does not wait for the news to reach them. Exam boards actively monitor social media, online forums, and messaging platforms throughout the exam season. They also receive direct reports from students, teachers, and school exam officers the moment something suspicious is spotted.

Schools are required to report any concerns to Cambridge immediately. Once a report comes in, Cambridge's Exam Security Team begins verifying whether the material is genuine.

What Cambridge Does When a Leak Is Confirmed

Step 1: Investigate the Scope

The first question Cambridge asks is: how far did this go? A question shared in one school's WhatsApp group is a very different situation from a full, solved paper distributed across an entire exam region. Cambridge reviews evidence from multiple sources to understand exactly what was shared, when, and how many students could have seen it.

Step 2: Remove the Compromised Content

When specific questions are identified as leaked, Cambridge can remove those questions from the marking process entirely. Your grade is then calculated based only on the questions that were not affected. This approach was used in June 2025, when parts of questions from three A-Level papers were confirmed to have been shared in advance. Cambridge stripped those questions from the mark scheme and graded students on the remaining content.

Step 3: Award Assessed Grades

In cases where the leak was significant enough that removing individual questions is not sufficient, Cambridge uses a method called assessed marks. This means your grade for the affected paper is calculated from your performance across your other exam components — papers you sat cleanly, coursework, and other assessments in the same subject. This approach was used following a confirmed leak in 2024, where Cambridge reviewed evidence from multiple sources before concluding that a paper had been seen by a significant number of students before the exam began.

Step 4: Offer Free Resits

Cambridge can also offer students the option to resit the affected paper in the next available session at no cost. Following the June 2025 leaks, Cambridge offered free resits in the November 2025 session to every student who had sat the three affected papers. No extra fees. No penalty. Students who were satisfied with their assessed grade could simply accept it. Those who wanted a fresh attempt could resit.

Step 5: Use Contingency Papers

In the most urgent scenarios — where a leak is confirmed before the exam begins — Cambridge holds contingency papers in secure storage for exactly this purpose. Schools can be issued a replacement paper on exam day so students sit a valid, uncompromised exam without delay.

What the History Tells Us

Cambridge has faced confirmed security incidents in recent years, primarily in the Pakistan and South Asia region. Each time, the board communicated with schools and students, applied a clear remedy, and released results on schedule.

In 2024, a single A-Level Mathematics paper was confirmed as leaked. Cambridge awarded assessed marks to affected students and offered a free November resit for those who wanted one.

In 2025, parts of three A-Level papers — Mathematics Paper 12, Mathematics Paper 42, and Computer Science Paper 22 — were found to have been partially shared before exams. Cambridge confirmed the breach in a direct statement to schools, removed the affected questions from marking, issued overall syllabus grades to all affected students, and offered free November resits.

In both cases, results were released on time, and no student was left without a grade.

The same pattern holds for Edexcel. Following a high-profile A-Level Maths Paper 3 leak in 2019 that affected around 60,000 students in the UK, Pearson Edexcel removed the compromised questions from the overall assessment and conducted statistical analysis to identify any irregular result patterns. Results were still issued.

The consistent message across every incident is this: exam boards have the tools to protect your grade, and they use them.

What You Should — and Should Not — Do

If You See a Claimed Leak Online

Do not engage with it. Do not share it. Do not open it.

Simply seeing leaked content by accident does not put you at risk. What matters is what you do next. Students who actively seek out, save, share, or use leaked material can be found guilty of malpractice. The consequences for malpractice include disqualification — not just from the affected paper, but potentially across all your subjects.

If you see something suspicious in a group chat, the right move is to report it to your school and leave the conversation.

Keep Revising

This is not obvious advice. When a leak is rumoured, many students stop revising the affected subject because they assume the exam will be cancelled or replaced. That assumption is almost always wrong.

Cambridge consistently asks students to keep preparing for and attending their upcoming exams, even while an investigation is ongoing. An unverified rumour is not a reason to stop revising. A confirmed leak handled by Cambridge is also not a reason — because Cambridge provides a remedy that protects your grade either way.

Wait for Official Communication

Your school's exam officer is your most reliable source of information. Cambridge communicates with registered schools and centres directly when any action is required. Social media is not. If something significant happens, your school will tell you — and Cambridge will release a formal statement.

A Note on Your Results

One of the most common fears students have is that a leak will cancel their results entirely or delay their university applications. Based on Cambridge's track record, this has not happened. Results have been released on schedule in every confirmed incident in recent years. The remedies Cambridge uses — removing questions, awarding assessed grades, offering free resits — are all designed to give you a fair grade without disrupting your timeline.

If your paper is investigated and Cambridge ultimately awards you an assessed grade, that grade carries exactly the same weight as any other Cambridge grade. Universities receiving your results will not know, and are not informed, that a particular paper was subject to a security review.

The Bottom Line

Exam leaks are unsettling to hear about. But the systems Cambridge has built to deal with them are solid, well-tested, and student-focused. You will not be left without a grade. You will not be punished for something you did not do. And your results will still reach you on time.

The best thing you can do right now is exactly what you were already doing: revise, sit your exams, and let Cambridge handle the security issues that are, ultimately, theirs to solve.

Sitting IGCSE or A-Level Biology or Chemistry this June? Our live crash courses are designed to help you walk into the exam room as prepared as possible — whatever the season throws at you. Register here.

Sources: Save My Exams — What Happens If a GCSE Paper Is Leaked · Dawn — Cambridge Confirms Partial Leak of 3 A-Level Papers (2025) · Dawn — Cambridge Offers Free November Resits (2025) · Dawn — Cambridge Begins Probe (2024) · AcademiaUK — Cambridge Exam Leak 2025 · ITV News — Edexcel A-Level Maths Leak (2019)