Is Cursor AI safe?
Cursor is reasonably safe for most users. It is SOC 2 Type II certified, offers a Privacy Mode that stops your code from being used for training, and keeps no infrastructure in China. However, your code is still sent to model providers to work, and AI-written code can contain bugs you must review.
Why — the first-principles explanation
"Safe" splits into two different questions: is your data safe, and is the code the AI writes safe. They have different answers.
On data, Cursor's safety rests on three pillars. First, Privacy Mode: when it is on, Cursor does not train on your code and enforces both technical controls and contracts with its model providers. Second, SOC 2 Type II certification, an independent audit confirming the company follows documented security controls over time. Third, transparency about subprocessors, including a stated policy of no infrastructure or subprocessors based in China. The unavoidable caveat: for the AI to help, your code must travel to a model provider (Anthropic, OpenAI, Google) for processing. Privacy Mode means it is not stored or trained on, but it is still transmitted.
On code quality, the risk is different. AI models can produce code that looks correct but contains security holes, like weak input validation or leaked secrets, because the model is predicting plausible text, not guaranteeing safety. This is not unique to Cursor; it is true of every AI coding tool.
So the practical safety answer is: the platform itself follows industry-standard security practices, but you remain responsible for turning on Privacy Mode if you need it, and for reviewing the AI's output before you ship it.
An example that makes it click
Think of Cursor like a very fast contractor you hire to work on your house. The company is bonded and licensed (that is the SOC 2 audit and Privacy Mode), so you can trust they will not steal your blueprints or make copies. But the contractor still has to walk through your house to do the work, and they sometimes install a door that does not quite lock right. You would not skip the final walkthrough just because the company is reputable. Same with Cursor: trust the company's handling of your files, but always inspect the actual work.
How to do it
- Turn on Privacy Mode in Settings so your code is never used for training.
- Avoid pasting live secrets, API keys, or passwords into prompts; use environment variables instead.
- Review AI-generated code for security issues before merging, especially auth and input handling.
- For sensitive company code, request Cursor's SOC 2 Type II report at trust.cursor.com and confirm Privacy Mode is enforced org-wide.
- Keep Cursor updated so you receive the latest security patches.
Key facts
- Cursor holds a SOC 2 Type II attestation, available on request at trust.cursor.com.
- Privacy Mode, available to free and paid users, prevents Cursor from training on your code.
- Cursor states it maintains no infrastructure and no subprocessors in China.
- Cursor commits to at-least-annual third-party penetration testing.
- Even with Privacy Mode, code is transmitted to model providers for inference to function.
- AI-generated code can contain security flaws and must be reviewed by a human before shipping.
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Is Cursor safe? Mostly yes, but split it into two questions. First, your data. Cursor is SOC 2 Type Two certified, which is an independent security audit. It offers Privacy Mode, which stops your code from being used to train AI models, and it keeps no infrastructure in China. The one honest caveat: for the AI to help you, your code does get sent to a model provider like Anthropic or OpenAI to be processed. Privacy Mode means it is not stored or trained on, but it is still transmitted. Second question: the code the AI writes. Like every AI coding tool, Cursor can produce code that looks right but hides a security bug. So the rule is simple. Turn on Privacy Mode, never paste live passwords or API keys, and always review what the AI writes before you ship it. Do that, and Cursor is safe for most work.
What authoritative sources say
People also ask
Does Cursor train AI on my code?
Not when Privacy Mode is on. With Privacy Mode enabled, Cursor does not train on your data and enforces this with providers.
Is Cursor SOC 2 certified?
Yes, Cursor holds a SOC 2 Type II attestation, which you can request at trust.cursor.com.
Can Cursor's AI write insecure code?
Yes, like all AI coding tools. Always review generated code for vulnerabilities before deploying it.
Is Cursor safe for a company to use?
Many companies use it. Enforce org-wide Privacy Mode, review the SOC 2 report, and set access controls on Team or Enterprise plans.