> **The gist.** Protecting your LinkedIn account comes down to four habits: (1) enable **2FA** (preferably via an authenticator app), (2) monitor your **active sessions** and revoke any you don't recognize, (3) **avoid risky tools** that store your session or automate your account, and (4) know how to spot **restriction signals** before it's too late. This guide details each step with official LinkedIn sources — account security beats after-the-fact recovery. ## Key takeaways - **Enable 2FA.** LinkedIn "*encourages all members to turn on two-step verification*"; the **authenticator app** is the recommended method, safer than SMS. *(LinkedIn Help)* - **Monitor your active sessions.** Regularly check connected devices and revoke any you don't recognize. - **Avoid tools that store your session.** "Cloud" tools that host your LinkedIn cookies elsewhere expose your account — see [dangerous Chrome extensions](/en/blog/extensions-chrome-linkedin-dangereuses). - **Spot restriction signals**: warning banner/email, identity-verification request, sharp drop in views, inability to post or send invites. *(ConnectSafely 2026)* - **The best protection against restriction**: don't automate your account and keep a human in the loop. ## 1. Enable two-step verification (2FA) This is the number-one security move, and the most effective against account takeover. **Two-step verification** adds a second layer: even if your password leaks, an attacker can't sign in without the second factor. LinkedIn is explicit: 2FA "*can greatly reduce unauthorized access to most accounts by identifying new or unknown computers or devices*," and "*LinkedIn encourages all members to turn on two-step verification*" ([LinkedIn Help — Two-step verification](https://www.linkedin.com/help/linkedin/answer/a1358878)). Two methods exist: - **SMS**: a code texted to you. Better than nothing, but vulnerable to SIM-swapping. - **Authenticator app** (Microsoft Authenticator, Google Authenticator…): LinkedIn **recommends** it as the preferred, safer method ([LinkedIn Help — Authenticator app](https://www.linkedin.com/help/linkedin/answer/a1354987)). To enable it: **Settings & Privacy → Sign in & security → Two-step verification → Turn on.** Choose the authenticator app if possible, and keep your backup codes somewhere safe. ## 2. Monitor your active sessions and devices Your password and 2FA protect the entrance — but a session already open on a forgotten (or compromised) device remains an open door. Under **Sign in & security**, LinkedIn lists your **active sessions**: devices and browsers where your account is signed in. The habit: - **Review the list regularly.** A device or location you don't recognize is a warning sign. - **Revoke unknown sessions.** Sign out anything that isn't you, then change your password. - **Watch for "server" sessions.** If a third-party tool stored your session to act for you, it may appear here — another reason to avoid such tools (§3). This is also the right place to check the **recovery emails and phone numbers** tied to your account: an attacker who adds their own recovery email can regain access even after a password change. ## 3. Avoid risky tools that expose your account The biggest threat to your account often isn't an anonymous hacker — it's a **tool you install yourself**. Two families to avoid: - **Tools that store your session/cookies elsewhere.** Many "cloud" automation tools host your LinkedIn session on their servers to act even with the browser closed. A vendor breach = your account exposed, and actions from an unusual IP = an automation signal to LinkedIn. - **Tools that automate your account.** Auto-connect, auto-message, auto-comment: they put you in the scope LinkedIn penalizes, up to restriction — see [the risks of LinkedIn automation in 2026](/en/blog/automatisation-linkedin-risques-2026). Before installing an extension, apply the 5 criteria from our guide [are LinkedIn Chrome extensions dangerous](/en/blog/extensions-chrome-linkedin-dangereuses): minimal permissions, no scraping, no session storage, **assistance rather than full-auto**, verifiable reputation. A well-designed **assistance** tool — one that stays in your browser and where **you approve every action** — doesn't store your session elsewhere and does nothing in your place. That's LinkHub's design: [personalized AI comments, always approved by you](/en/features/ia-commentaires-personnalises), never auto-posting or hosting your session. ## 4. What are the signals of an account restriction? It's best to catch a restriction early. Here are the signals to watch, per [ConnectSafely (2026)](https://connectsafely.ai/articles/linkedin-limitations-restrictions-guide-2026): - **Warning banner or email**: "*Access to your account has been temporarily restricted*". - **Verification request**: LinkedIn asks you to confirm your email, phone or a government-issued ID. - **Blocked actions**: inability to post, send messages or send invites. - **Sharp drop in views** with no change in your posting activity — possible reach reduction ("shadowban"). - **Full lockout**: unable to sign in. On causes, restrictions mostly come from: (1) too many invites in a short time, (2) a **low acceptance rate** on invites (under 20%), and (3) suspected automation use. The preventive habit is in our guide [how many actions per day on LinkedIn](/en/blog/combien-actions-par-jour-linkedin). ## 5. What to do if your account is restricted? If you see one of these signals, keep a cool head: - **Read LinkedIn's message** and follow the requested verification process (email, phone, ID). - **Immediately stop any third-party tool** that could be the cause, and revoke its session under Sign in & security. - **Change your password** and check your recovery emails/numbers. - **Don't pile on actions** during a restriction: waiting and fixing the behavior that triggered the block beats pushing harder. A first restriction usually lasts from a few days to a week; repeats can lead to a manual support review. The best strategy stays **preventive**: 2FA on, clean sessions, no risky tools, and usage that stays human — exactly what an assistance approach you approve allows. ## FAQ **How do I secure my LinkedIn account?** Four habits: enable 2FA (via an authenticator app preferably), monitor and revoke your active sessions, avoid tools that store your session or automate your account, and learn to spot restriction signals. Prevention beats recovery. **SMS or app 2FA — which should I choose?** LinkedIn recommends the **authenticator app** as the preferred, safer method over SMS (vulnerable to SIM-swapping). Keep your backup codes somewhere safe. See [LinkedIn Help](https://www.linkedin.com/help/linkedin/answer/a1354987). **Which tools put my account at risk?** Those that store your session/cookies on their servers ("cloud" tools) and those that automate your account (auto-connect, auto-message). Prefer assistance where you approve every action — see [dangerous Chrome extensions](/en/blog/extensions-chrome-linkedin-dangereuses). **How do I know if my account is restricted?** Signals: warning banner or email, identity-verification request, inability to post or invite, a sharp drop in views, or a full lockout. Stop any third-party tool and follow LinkedIn's verification process. ## Sources & methodology - An informational article on account security. The 2FA and session recommendations come from LinkedIn's official documentation; the restriction signals are cross-checked with a dated third-party source. - [LinkedIn Help — Two-step verification](https://www.linkedin.com/help/linkedin/answer/a1358878) · [LinkedIn Help — Authenticator app](https://www.linkedin.com/help/linkedin/answer/a1354987) · [ConnectSafely — Restrictions Guide 2026](https://connectsafely.ai/articles/linkedin-limitations-restrictions-guide-2026) - Find all our studies on the [LinkHub blog](/en/blog).