How secure is your data with Perplexity AI?
Perplexity uses standard encryption in transit and lets you delete history and opt out of AI training. But by default it retains your searches and may use them to improve its models, so security depends partly on your settings. Enterprise plans add stronger contractual protection and are never used for training. Never enter passwords or sensitive personal data.
Why — the first-principles explanation
"Secure" combines two questions: is your data protected from outsiders, and how does Perplexity itself use it. On the first, Perplexity applies the industry baseline, encryption so data can't be easily read while traveling between your device and its servers, plus account controls to delete threads and history. That covers the classic security concern of interception.
The subtler issue is internal use. On free, Pro, and Max plans, the AI Data Retention setting is on by default, meaning your queries can be stored and used to train models. That's a privacy exposure more than a hacking risk: your search topics live on Perplexity's systems unless you delete them and opt out. For most casual research that's low-stakes, but it matters if your questions themselves are sensitive.
Security also depends on which plan and which promises apply. Perplexity contractually bars third-party model providers (like OpenAI and Anthropic) from training on your data, and Enterprise plans are excluded from training entirely with added admin and compliance controls. The honest caveat: a lawsuit filed in April 2026 alleged undisclosed trackers sharing data, an unproven, disputed claim, but a reminder that no cloud service is risk-free. Practical security is therefore mostly in your hands: turn off data retention, delete sensitive threads, use Enterprise for confidential work, and never paste credentials or ID numbers.
An example that makes it click
Think of Perplexity like a bank's safety deposit area. The building has locks and cameras, that's the encryption keeping strangers out. Pretty solid. But there's also a house rule: unless you say otherwise, the staff jot down what you store to improve their service. You can tell them 'don't record my visits' (opt out), and business clients get a signed promise of total privacy (Enterprise).
Either way, you still wouldn't leave your PIN written on the box. The building can be secure and the staff trustworthy, and you still keep your most secret stuff out of the room entirely. That's the smart way to use Perplexity: use its locks and settings, but don't hand over your crown jewels.
How to do it
- In Settings, turn off the AI Data Retention toggle to limit training use of your searches.
- Delete sensitive threads and clear your search history regularly.
- Never enter passwords, ID numbers, full financial details, or confidential documents.
- Use a strong, unique password and enable two-factor authentication on your account.
- For confidential business use, choose an Enterprise plan, which is excluded from AI training.
Key facts
- Perplexity encrypts data in transit and offers history deletion and training opt-out.
- AI Data Retention is ON by default for free, Pro, and Max users.
- Enterprise data is never used for AI training and adds admin/compliance controls.
- Third-party model providers are contractually barred from training on your data.
- An April 2026 lawsuit alleged undisclosed tracking; it is unproven and disputed by Perplexity.
An answer engine that searches the live web and cites its sources.
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How secure is your data with Perplexity AI? Let's be straight about it. On the basics, Perplexity does what you'd expect: it encrypts your data in transit, so it's protected while traveling to and from its servers, and it lets you delete your history and threads. That part is solid. The bigger question is how Perplexity itself uses your data. By default, on the free, Pro, and Max plans, it retains your searches and can use them to train its AI. That's more of a privacy issue than a hacking one, your search topics sit on their servers unless you opt out. So step one: go into settings and turn off AI Data Retention. It also contractually stops outside AI companies from training on your queries, and Enterprise plans are never used for training at all, which is why businesses use them. There was a 2026 lawsuit alleging hidden tracking, unproven and disputed, but a good reminder: no cloud tool is zero-risk. Use the settings, delete sensitive chats, and never, ever type in passwords or ID numbers.
What authoritative sources say
People also ask
Is my Perplexity data encrypted?
Yes, Perplexity uses standard encryption to protect data in transit between your device and its servers, the industry baseline for cloud tools.
Can I delete my Perplexity search history?
Yes. You can delete individual threads or clear your history in your account, and turn off data retention to limit training use.
Is Perplexity safe for confidential work data?
Use an Enterprise plan for confidential work, since it's excluded from training and adds controls. Avoid pasting secrets into consumer plans.