Why are my aged FB accounts hitting "Suspicious Login" validation even inside anti-detect browsers? Is it an IP lineage issue?

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steenhovenanthonyfwxwd

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Hey guys, managing an account farm with fully matched browser fingerprints (WebRTC, Canvas, Timezone synced). Yet, many aged accounts still hit instant "Suspicious Login" or security verification upon login.

I suspect my proxies are the culprit. Does FB's current algorithm strictly flag the IP's ASN lineage (Datacenter vs. True Static ISP)?
 
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now is yes. they r scanning a lot fb acc profile
 
It definitely sounds like your proxies are the likely issue, especially if you're using datacenter IPs, as Facebook's algorithm is probably flagging those ASN lineages pretty hard
 
Yes, most likely the Proxy. Sometimes the proxy was used before, and when you use it, it caused that error
 
Yeah, IP reputation and ASN type can definitely be a strong signal but usually not the only thing triggering those checks. Fingerprint sync doesn't remove red flags from inconsistent login behavior and account history.
 
It sounds like Fac*ebook's getting wise to your account farming game, and yeah, your proxies are probably the weak link. The algorithm likely flags IP lineage, meaning it's catching on to your datacenter proxies instead of legit residential ones
 
steenhovenanthonyfwxwd said:
Hey guys, managing an account farm with fully matched browser fingerprints (WebRTC, Canvas, Timezone synced). Yet, many aged accounts still hit instant "Suspicious Login" or security verification upon login.

I suspect my proxies are the culprit. Does FB's current algorithm strictly flag the IP's ASN lineage (Datacenter vs. True Static ISP)?
Click to expand...
I believe that you are correct and that your proxies make your accounts get flagged. Residential ISP proxies are the ones you should use and make sure they are dedicated only to you.
 
steenhovenanthonyfwxwd said:
Hey guys, managing an account farm with fully matched browser fingerprints (WebRTC, Canvas, Timezone synced). Yet, many aged accounts still hit instant "Suspicious Login" or security verification upon login.

I suspect my proxies are the culprit. Does FB's current algorithm strictly flag the IP's ASN lineage (Datacenter vs. True Static ISP)?
Click to expand...
just a random scan from Meta
dont worry if u make sure about ur set up in all account
 
Tôidont think its a problem with your IP or proxy , maybe its just a scan after some Mete settings changes, causing your account to receive notifications. You could try changing your password
 
it’s probably not just the browser fingerprint, fb seems to care a lot about the IP side too especially if the proxy looks weird or changes a lot

even aged accounts can get flagged if the login pattern doesn’t look normal
 
From what I ever seen, IP reputation matters a lot. Even with clean fingerprints, a weak proxy ASN or IP with a history of abuse can trigger additional checks.
 
One thing I've learned is that older accounts aren't automatically safer. Some of the most troublesome accounts I dealt with were also the oldest ones
 
steenhovenanthonyfwxwd said:
Hey guys, managing an account farm with fully matched browser fingerprints (WebRTC, Canvas, Timezone synced). Yet, many aged accounts still hit instant "Suspicious Login" or security verification upon login.

I suspect my proxies are the culprit. Does FB's current algorithm strictly flag the IP's ASN lineage (Datacenter vs. True Static ISP)?
Click to expand...
Your account may have been hacked; please enable two-factor authentication.
 
Meta’s security system doesn’t rely on just one signal anymore. It uses multi-layered risk scoring, and login challenges often appear when any combination of signals looks inconsistent.
 
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