The three fraud categories every brand should know
Fraud patterns cluster into three buckets. Each has a different detection approach and a different cost profile:
- Bought followers — inflates audience size without delivering reach. Cheapest to buy, easiest to detect.
- Bought or pod engagement — inflates engagement rate without delivering authentic audience action. Harder to detect because the engagement looks real at surface.
- Artificial reach — paid amplification or suspicious growth patterns that make a creator look hotter than they are.
Bought follower detection: what to look for
Bought followers leave fingerprints. The profile-level signals are account age distribution, post history, follower-to-following ratios, and geographic concentration.
A creator with a healthy audience has a smooth distribution of follower account ages — some old, some new, some dormant, some active. A creator with purchased followers tends to show clusters: lots of accounts created in the same two-week window, few with post history, and geographic concentration in regions known for follower farms.
- Spot-check 20-50 random followers and record account age, post count, and region
- Flag creators where more than 30% of sampled followers have fewer than 3 posts
- Flag geographic concentration that does not match the creator's content audience
- Cross-reference against the creator's growth curve — sudden follower spikes with no viral content is a strong signal
Engagement pods and bought comments: the harder tell
Pod engagement is the trickier fraud category because the activity is real humans, real accounts, and real engagement. What you are looking for is pattern, not volume.
Authentic comment sections have a distribution: some substantive replies, some emoji, some tag-a-friend, some one-word affirmations. Pod engagement tends to cluster at the emoji and affirmation end, with comment timing that bunches in the first 15 minutes after posting and then drops off sharply.
- Read the first 30 comments on the last 5 posts — flag if they are dominated by fire emojis and single-word praise
- Check timing distribution — pods spike in minute 1-15, authentic engagement trickles over hours
- Look for repeated commenters across multiple posts with interchangeable language
- Compare like-to-comment ratio against size-matched peers — ratios far outside the band are suspicious
Growth curve analysis: the best single fraud signal
If you only have time for one fraud check, look at the follower growth curve. Authentic growth is either slow and steady, or punctuated by identifiable viral moments you can trace back to specific content.
Fraud looks different. You will see sudden vertical spikes with no corresponding viral post, plateau periods that end in sharp drops (follower purges), and irregular step-patterns that suggest follower purchases rather than organic reach.
Every Morthn scan models the creator's growth curve against an expected rate for their category and flags anomalies with evidence. The same check takes about three minutes manually if you have access to any third-party follower tracker.
Why this matters for brand safety, not just spend efficiency
Fraud is a waste of spend, but undetected fraud in a high-profile campaign is also a PR risk. When a creator you paid gets exposed as having bought audience or pod engagement, the campaign associated with them becomes part of the story.
The defensibility of a creator pick matters. A documented vetting process with recorded fraud checks protects the brand, the agency, and the individual buyer from the fallout when a creator is later exposed.
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Morthn scans the full fraud signal stack on every handle — audience quality, engagement authenticity, and growth anomalies.
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