xat 2015 Data Breach
ObscureIQ Breach Intelligence
Low SeverityWebsite / service breach
xat Online Chat Platform Breach (2015): 6 Million User Accounts Including Passwords Exposed
Web-based chat platform.
Verified by ObscureIQ Intelligence
14/100Breach Risk Index
6Data Value
10Market Recency
3624dSince Breach
Breach Intelligence Summary
Entity: xat · Actor: Unknown · Sources: 8 references
Attack: Third-Party Vendor
Profile: Platform · Web-based chat platform · Communications platform · Global
Timeline: Breach (2015-11-04) · Indexed (Aug 05, 2016) · Year (2015)
Exposure: 6.0M records · 5 fields: Activity History, Email Address, IP Address, Password, Username
Status: Confirmed
Executive Summary
In November 2015, the chat platform xat was compromised and about 5.94 million accounts were exposed. The attacker used social engineering against xat’s hosting provider, 100TB, convincing them to add an unauthorized email to the account, disable two-factor authentication, and grant control of xat’s servers. Exposed data included usernames, email addresses, IP addresses, website activity, and hashed passwords. No payment data was involved.
ObscureIQ assessment: Exposure enables harassment, stalking, phishing, and social-graph mapping. Chat-platform data is especially sensitive because it can reveal private conversations and relationship networks.
Breach Impact
The credential and activity data supports account takeover and profiling; the incident is a clear example of provider-side social engineering defeating account security controls.
About xat
xat is an online chatroom and group-chat platform where users join themed rooms and communities to talk in real time.
Why They Hold Your Data
Web-chat platforms collect user accounts, messages, social relationships, profile data, and engagement history tied to real-time online communication.
Recent Developments
xat continued operating after the incident, which stemmed from a social-engineering attack on its hosting provider rather than a direct compromise of xat code.
Data Points Exposed
5 verified field types
Activity History
Email Address
IP Address
Password Critical
Username
Field names are shown in full for clarity and search visibility. Canonical machine keys are emitted only in this page’s structured data.
Exploitation & Downstream Threats
Threat Activity:Moderate
Primary downstream threats:
- Credential stuffing against reused passwords across other platforms
- Targeted phishing campaigns using exposed email addresses
Threat vectors:
- Behavioural profiling & blackmail
- Phishing, credential stuffing & account takeover
- Geolocation & account flagging
- Credential stuffing & account takeover
- Cross-platform tracking & credential stuffing
Recommended Actions
If you believe your information may be included:
Change Reused Passwords
Update this account and anywhere you reused the password; use a manager.
Enable MFA Everywhere
Turn on multi-factor authentication on email first, then financial accounts.
Report & Recover
If you spot misuse, start an official recovery plan and report fraud.
Frequently Asked Questions
What happened in the xat breach?▾
In November 2015, the chat platform xat was compromised and about 5.94 million accounts were exposed. The attacker used social engineering against xat’s hosting provider, 100TB, convincing them to add an unauthorized email to the account, disable two-factor authentication, and grant control of…
What data was exposed?▾
Verified fields include Activity History, Email Address, IP Address, Password, Username.
What should I do if I was affected?▾
Change reused passwords, enable MFA, and (if identity or financial data is involved) freeze your credit and monitor your accounts.
Sources & References
Every claim on this page is traceable. This breach draws on:
Breach Index
Breach Index
Cross-source
9ghz
Cross-source
BreachForums_Official_Index
Cross-source
DataViper.io
Cross-source
Dehashed
Cross-source
Keeper
ObscureIQ Intelligence
ObscureIQ proprietary analysis
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