TeamViewer is real, established remote access software made by TeamViewer SE, and its site lists certifications such as ISO/IEC 27001. The risk is mostly who you let in: scammers pose as support staff and ask for remote access. Download it only from the official site, and never let someone who contacted you first connect.
Remote access tools are powerful, which is exactly why people ask whether they're safe. If you work with a freelancer, a support team or a family member who needs to see your screen, TeamViewer is probably one of the names you've heard. I've read TeamViewer's own pages, Wikipedia and the FTC's scam guidance so you can judge it fairly.
What TeamViewer is and who makes it
According to Wikipedia, TeamViewer is the core product of the developing company TeamViewer SE, and the first version of the software was released in 2005. In plain terms, it lets one person view or control another person's computer or phone over the internet, so a helper can fix a problem without being in the room.
That's useful for small businesses and remote teams, and it's also why criminals like the idea. A remote access tool is only as safe as the person who has the connection details.
What TeamViewer says about its security
TeamViewer's security page says the company is ISO/IEC 27001 certified and has been audited for full SOC 2 and SOC 3 compliance. It also says TeamViewer is a CVE Numbering Authority and runs a bug bounty through YesWeHack, which means researchers can report flaws for a reward.
Those are the company's own claims on its own page, so I'd read them as a sign it takes security seriously rather than as proof nothing can go wrong. I couldn't find encryption details on the official pages I checked, so I won't quote any.
Past incidents involving TeamViewer
Two episodes are worth knowing. Wikipedia reports that in 2016 hundreds of users said their computers had been accessed by an unauthorized address in China. TeamViewer said it hadn't been hacked and that there was no security hole, and attributed the problem to careless use.
In 2024, according to Wikipedia, TeamViewer said it was the target of an attack by the Russian hacker group APT29, using a standard employee's credentials. Wikipedia adds that, per Heise, the attack was limited to the corporate IT environment and did not affect client data or product systems. Because I'm relying on Wikipedia for that account, check TeamViewer's own security notices if you want the full detail.
How scammers use TeamViewer
This is the main way people get hurt. Wikipedia states that TeamViewer and similar programs can be abused for technical support scams, and that the British ISP TalkTalk permanently blocked the software's data traffic because of this abuse.
The FTC describes the pattern: scammers ask for remote access to your computer and pretend to scan it for viruses. They often insist on payment by gift cards, wire transfer, bank transfer, cryptocurrency or a payment app. The FTC also says legitimate tech companies won't contact you by phone, email or text message.
- Never give a code or install the software because a caller, pop-up or message told you to.
- A real security warning will never ask you to call a phone number.
- Don't pay for support by gift card, transfer or crypto.
- If you think you gave access to a scammer, change your passwords and report it at ReportFraud.ftc.gov.
If you're worried an account has already been compromised, my guide to checking whether an account was hacked shows the warning signs and next steps.
Free for personal use, not for business
TeamViewer's licence terms say the free version is solely for personal and non-commercial purposes, and that business use doesn't count as personal usage. The terms also say TeamViewer may analyze usage to detect whether the agreed scope of use is being exceeded.
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So if you're a freelancer or run a small business, using the free version for client work could breach the terms and may lead to the software limiting your sessions. Check the licence for your situation.
| What I checked | What TeamViewer's own pages say |
|---|---|
| Who makes it? | TeamViewer SE, per Wikipedia |
| Certifications? | ISO/IEC 27001 and SOC 2 and SOC 3 audits, per its security page |
| Free to use? | Personal and non-commercial use only |
| Past incidents? | A 2016 claim it disputed and a 2024 attack on its corporate network |
| Scam risk? | Real, because fraudsters ask victims to connect |
Settings that make TeamViewer safer
TeamViewer's knowledge base security section lists articles on two-factor authentication for connections, remote control via a one-time password and restricting access for connections. Those headings point to features you can switch on, so look them up in its help pages.
- Use two-factor authentication on your account.
- Prefer a one-time password for a single help session.
- Close the session and quit the program when the job is done.
- Keep the software updated from the official site only.
If you share a login with a team, a password manager helps too, and my comparison of two popular password managers explains the trade-offs.
Where to download TeamViewer safely
Download only from TeamViewer's official website. Scam adverts often copy download pages, and a fake installer is an easy way to get malware. Type the address yourself rather than tapping an advert.
My view
TeamViewer is legitimate software from an established company, not a scam. The danger is rarely the program itself; it's the stranger who talks you into opening it. Use it with people you contacted, switch on two-factor authentication and never let an unexpected caller connect.
Frequently asked questions
Is TeamViewer a legitimate program?
Yes. Wikipedia describes it as the core product of TeamViewer SE, first released in 2005, and its security page lists ISO/IEC 27001 and SOC 2 and SOC 3 audits.
Can scammers use TeamViewer?
Yes. Wikipedia says TeamViewer and similar programs can be abused for technical support scams, and the FTC warns about scammers asking for remote access.
Is TeamViewer free?
The EULA says the free version is solely for personal and non-commercial purposes, and business use doesn't count as personal usage.
Was TeamViewer hacked?
Wikipedia reports that in 2024 TeamViewer said it was targeted by APT29, with the attack limited to its corporate IT environment according to Heise.
What should I do if I let a scammer connect?
The FTC advises changing your passwords right away and reporting the scam at ReportFraud.ftc.gov.
