Account sharing prevention and monitoring.

Detect account sharing with 99% accuracy. Convert sharers into happy paying customers without affecting user satisfaction.

  • Account insights
    Shared by
    3+ people
    Repeat trials
    4
    Converted
    Yes 🎉
    Shared account signals
    Concurrency
    99+
    Impossible travel
    91
    Over device limit
    53
    Excessive usage
    4σ
  • Shared accounts
    2,178
    Up 21% from last month

  • Top actively shared accounts

    Account People
    bking@yahoo.com+58
    gsanchez@hotmail.com+15
    fmiller@outlook.con+13
    hwilliams@gmail.com+8
    ujones@icloud.com+8
    pmiller@icloud.com+8
  • 49% Shared accounts
    32% Repeat trials
    25% Over device limit
  • Conversions
    101
    All time: 531 conversions
  • Added people
    4,481
    Up 15% from last month

From startups to enterprises, customers trust Rupt.

Alexis Dupont

"Without Rupt, it was impossible to detect account sharers with factual data. Once we added Rupt, we realized we were missing $1M+ ARR and decided to dig into it."

Alexis Dupont

Product Principal, Agorapulse

Adam Siegel

"What we thought would be a real friction point with our existing customers, we saw them go, 'oh my God, why haven't you done this sooner?' They saw it as a feature, not friction."

Adam Siegel

VP of Product Growth, Crexi

Danielle Dyess

"We saw about 4% of account sharers convert immediately after implementing Rupt, which was fantastic."

Danielle Dyess

Principal Product Manager, Sketchy

Andy Romano

"Our first line of defense was to start paying attention to user signals on our own. However, we quickly realized that it was more than a full-time job to accurately identify account sharers."

Andy Romano

Founder, Prep101

Mohamed Abdelmaksoud

"Growth rate doubled after implementing Rupt's repeat sign up detection. This improved the platform's stability and availability and reduced our OpenAI credits usage."

Mohamed Abdelmaksoud

Founding Full Stack Developer, StealthWriter

Nelson Joyce

"Rupt was a plug-and-play win for us. It handled a massive amount of complexity out of the box, started protecting our bottom line almost immediately, and the team has been genuinely responsive every step of the way."

Nelson Joyce

Co-founder, Tettra

Why prevent account sharing?

Account sharing costs subscription businesses 5-25% of potential revenue. Rupt helps you recapture this value.

Revenue leakage

Industry studies show that 30-49% of users share their account credentials. This represents a significant amount of lost revenue that could be converted to paid subscriptions.

Security risks

Account sharing increases the risk of credential theft and unauthorized access. Preventing password sharing improves overall security and reduces support costs.

Data integrity

When multiple users share a single account, analytics and usage data become inaccurate. This affects product development decisions and user experience optimization.

Complete account sharing prevention platform

Rupt goes beyond simply detecting account sharing. Our comprehensive solution helps you identify, prevent, and monetize password sharing across web, iOS, and Android. With industry-leading 99% accuracy, you can convert unauthorized users into paying customers while maintaining exceptional user experience.

Choose from a variety of automated or manual challenges to fit your business model and user sensitivity. Our approach focuses on revenue growth, not just prevention.

Account sharing challenges How it works

1. Detect

Identify shared accounts using advanced device fingerprinting and behavioral signal analysis with up to 99% accuracy.

2. Prevent

Implement automated challenges or manual interventions to stop unauthorized sharing and convert users to paying customers.

3. Grow

Convert shared accounts into new subscriptions, increasing your revenue by 5-15% within 90 days.

4. Monitor

Track conversions and monitor account usage patterns with real-time dashboards to optimize your prevention strategy.

How our account sharing prevention works

Our proprietary device identification technology delivers industry-leading accuracy with fewer false positives than traditional fingerprinting methods. This means more confident prevention with better user experience.

1

Device identification

Our advanced device identification technology creates unique persistent identifiers for each physical device accessing your platform, enabling accurate identification even when cookies are cleared or VPNs are used.

2

Behavioral signals

We analyze usage patterns, login times, geographic locations, and other behavioral signals to identify when multiple people are using the same account across different devices.

3

Customizable interventions

Deploy tailored responses to account sharing, from gentle notifications to device limits or conversion offers. Our modular challenges enable you to choose the approach that best fits your business model.

4

Continuous monitoring

Track the effectiveness of your account sharing prevention with real-time dashboards. Measure conversion rates, revenue impact, and user behavior to optimize your strategy over time.

Device identification vs. fingerprinting

Rupt's device identification technology provides significant advantages over traditional fingerprinting approaches, resulting in more accurate account sharing detection with fewer false positives

Feature Traditional Fingerprinting Rupt's Device Identification
Accuracy 75-85% with frequent false positives Up to 99% with minimal false positives
Persistence Degrades over time as browser features change Maintains accuracy over time with stable device identifiers
User Experience Often blocks legitimate users due to false positives Better user experience with few/no mistaken challenges
Cross-Platform Less effective on mobile platforms Consistent performance across web, iOS, and Android
Circumvention Resistance Easily defeated with browser settings or plugins Resistant to common circumvention techniques
Learn more about our device identification

Developers

Easy, modern APIs that developers love.

Rupt is easy to integrate and use. Simple, well-documented APIs, SDKs, and MCPs. Built for the way modern developers work.

Proprietary browser and device fingerprints, returned on every call.

1{
2 "_id": "evl_3yJk7K9xQ2mR4nT8",
3 "action": "login",
4 "verdict": "challenge",
5 "reasons": [ "new_fingerprint", "new_ip", "vpn_detected"],
6 "projectUser": {
7 "external_id": "usr_4f2c8a1b",
8 "email": "user@example.com",
9 "phone": "+12125550100"
10 },
11 "metadata": { "plan": "pro" },
12 "fingerprint": {
13 "_id": "fp_a8b9c7d6e5f4",
14 "hash": "5d41402abc4b2a76b9719d911017c592",
15 "stableHash": "8e2a6c1f9b3d4a7e",
16 "confidence": 0.94,
17 "projectUserCount": 1,
18 "deviceCount": 2,
19 "ipCount": 3
20 },
21 "risks": [
22 {
23 "category": "fake_account",
24 "severity": "high",
25 "score": 7,
26 "indicators": [ "disposable_email", "datacenter_ip"]
27 },
28 {
29 "category": "bot",
30 "severity": "medium",
31 "score": 4,
32 "indicators": [ "headless_browser", "automated_behavior"]
33 },
34 {
35 "category": "account_sharing",
36 "severity": "high",
37 "score": 5,
38 "indicators": [ "concurrent_sessions", "high_computer_count"]
39 },
40 {
41 "category": "ato",
42 "severity": "high",
43 "score": 6,
44 "indicators": [ "new_fingerprint", "new_ip", "ip_is_vpn"]
45 }
46 ],
47 "risk_summary": [
48 { "category": "fake_account", "severity": "high" },
49 { "category": "bot", "severity": "medium" },
50 { "category": "account_sharing", "severity": "high" },
51 { "category": "ato", "severity": "high" }
52 ],
53 "geolocation": {
54 "ip": "203.0.113.42",
55 "latitude": 40.7128,
56 "longitude": -74.0060,
57 "city": "New York",
58 "region": "NY",
59 "country": "United States",
60 "country_code": "US",
61 "security": {
62 "anonymous": false,
63 "proxy": false,
64 "tor": false,
65 "vpn": true,
66 "hosting": false
67 }
68 },
69 "ip": {
70 "address": "203.0.113.42",
71 "asn": "AS15169",
72 "asn_name": "Google LLC",
73 "datacenter": false,
74 "reputation": "suspicious",
75 "blocklists": [ "spamhaus_xbl", "abuseipdb"]
76 },
77 "email": {
78 "address": "user@example.com",
79 "is_disposable": false,
80 "is_webmail": true,
81 "is_valid": true,
82 "is_accept_all": false,
83 "is_verified": true
84 },
85 "phone": {
86 "number": "+12125550100",
87 "carrier": "Verizon",
88 "line_type": "non_fixed_voip",
89 "is_valid": true,
90 "is_verified": false
91 },
92 "policy": {
93 "_id": "pol_z9y8x7w6",
94 "name": "Block multi-accounting",
95 "action": { "type": "challenge" }
96 },
97 "challenge": {
98 "_id": "chl_8d7c6b5a4",
99 "mode": "rupt_managed",
100 "type": "biometric",
101 "redirect_url": "https://challenge.rupt.dev/?challenge=chl_8d7c6b5a4"
102 },
103 "lists": {
104 "matched": [ "trusted_devices"],
105 "allowlisted": true,
106 "blocklisted": false
107 },
108 "createdAt": "2026-05-18T14:32:01.842Z"
109}

Reliable at scale

Billions of requests a year, 150M+ a month, resilient even under high traffic with 99.99% uptime.

100ms response time

100ms p99 latency. Fingerprinting, geolocation, verdicts, and more in one fast, modern API.

Extensible infrastructure

Build custom rules, risks, challenges, trust scores, and more and deploy in real-time.

Calculate revenue impact

Our customers typically see a 5-15% revenue increase within 90 days. Account sharing prevention alone can recover millions in ARR for enterprise businesses. Use our ROI calculator to estimate your potential revenue recovery and growth opportunity.

10,000
$49
15%
Target accounts
1,500
Potential new users
3,000
Converted users
1,200+
Increasing revenue by
+ $58,800 / month
Total ARR increase
+12%
+ $705,600 ARR

Proven results from account sharing prevention

4%

Immediate conversion rate from account sharers at Sketchy

$1M+

Additional ARR discovered at Agorapulse from account sharing

2x

Growth rate after implementing account sharing prevention at StealthWriter

How do you want to work with Rupt?

Choose how you want to work with us. Try Rupt now or contact sales to get started.

Contact sales Try Rupt now