ShopBack 2020 Data Breach
ObscureIQ Breach Intelligence
Low SeverityWebsite / service breach
ShopBack Asia-Pacific Cashback Platform Breach (2020): 20 Million User Accounts Including Passwords & Phone Numbers Exposed
Cashback and rewards platform.
Verified by ObscureIQ Intelligence
12/100Breach Risk Index
5Data Value
10Market Recency
1900dSince Breach
Breach Intelligence Summary
Entity: ShopBack · Actor: Unknown · Sources: 7 references
Attack: Unknown
Profile: Platform · Cashback and rewards programs · Affiliate commerce marketplace · APAC / Global
Timeline: Breach (2020-09-17) · Indexed (Apr 25, 2021) · Year (2020)
Exposure: 20.5M records · 5 fields: Email Address, Full Name, Geographic Location, Password, Phone Number
Status: Confirmed
Executive Summary
In September 2020, the Singapore-based cashback rewards platform ShopBack suffered a data breach exposing over 20 million unique email addresses along with names, phone numbers, country of residence, and passwords stored as salted SHA-1 hashes.
ObscureIQ assessment: High risk of fraud, account takeover, and transaction manipulation. Purchase behavior data enables targeted scams and profiling.
Breach Impact
Salted SHA-1 credentials are crackable, exposing reused passwords to stuffing; contact data supports phishing across ShopBacks Southeast Asian user base.
About ShopBack
Cashback and rewards platform.
Why They Hold Your Data
Cashback and affiliate commerce platforms collect user accounts, emails, transaction data, purchase history, and financial reward balances tied to online shopping activity.
Data Points Exposed
5 verified field types
Email Address
Full Name High
Geographic Location
Password Critical
Phone Number
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
- SIM swap attacks where phone numbers are present
- Targeted phishing campaigns using exposed email addresses
- Doxxing risk from physical address exposure
Threat vectors:
- Phishing, credential stuffing & account takeover
- Name-based social engineering
- Pattern-of-life analysis & physical surveillance
- Credential stuffing & account takeover
- SIM swapping, vishing & SMS phishing
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 ShopBack breach?▾
In September 2020, the Singapore-based cashback rewards platform ShopBack suffered a data breach exposing over 20 million unique email addresses along with names, phone numbers, country of residence, and passwords stored as salted SHA-1 hashes.
What data was exposed?▾
Verified fields include Email Address, Full Name, Geographic Location, Password, Phone Number.
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
Keeper
Cross-source
leakfind
ObscureIQ Intelligence
ObscureIQ proprietary analysis
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