Multilogin is powerful – but only when used properly. It’s built for teams managing multiple accounts across marketing, recruitment, e-commerce, scraping, and more. With features like teamwork tools, built-in proxies, automation integration, and fingerprint masking, Multilogin helps you stay stealthy, efficient, and safe.

But here’s the deal: skipping or misusing these features can cause serious issues – like bans, data leaks, or performance breakdowns. Let’s look at what can go wrong (and how to avoid it).

Ignoring teamwork features

Multilogin’s teamwork tools exist for a reason: to help teams work securely and smoothly.

What could go wrong:

• Credential leaks: without role-based access, people end up emailing passwords back and forth – risky and outdated
• Session conflicts: when two team members open the same profile from different devices, it can trigger fingerprint mismatches, raising red flags for platforms
• Messy collaboration: not organizing profiles into folders means teammates waste time hunting for the right profile

Use role-based access, shared folders, and notes to stay aligned without stepping on each other’s toes.

Proxy setup mistakes

Proxies hide your IP and help your profile “live” in a different location. Multilogin’s built-in proxy support is optimized for this – but only if set up right.

What could go wrong:

• Reused IPs: using the same proxy IP for multiple profiles is a big no-no – platforms pick up on this and may ban all linked accounts
• Geolocation mismatch: for example, using a U.S. proxy for scraping EU prices on Skyscanner can show incorrect fares or trigger HTTP 403 errors
• Proxy leaks: low-quality proxies can leak your real IP. Imagine your Google Ads team’s actual location getting exposed during a campaign – yikes

Use unique, high-quality residential proxies (Multilogin ones work great) and always match them with the right region.

Misusing automation & CLI

Automation helps scale tasks – fast. But it needs to be handled with care.

What could go wrong:

• Overload bans: sending 1,000+ HTTP requests per minute to an API (like Skyscanner’s) can get your IP or account banned
• System overload: forgetting to use headless mode or setting concurrency limits can slow things down or crash profiles – especially if your team’s running 50+ instances

Use Multilogin CLI or automation libraries responsibly, limit requests, and start profiles the proper way.

Skipping fingerprint masking

Fingerprint masking is what makes your profiles unique. Skip it, and you look suspicious – or worse, identical to others.

What could go wrong:

• Cloned fingerprints: using the same set of fingerprint values across profiles makes them look alike – this is bad news for teams managing multiple accounts
• Location mismatches: if timezone and proxy don’t align, websites will likely think “hey, this user looks fake”
• Hardware exposure: skip WebRTC or font masking, and websites can spot your real device

Follow fingerprint best practices and use default settings, unless you know exactly what you are doing. Keep things realistic, consistent, and tailored to your proxy.