thinkmarkets.com Listed by chaos Ransomware Group

On December 8, 2025, the online brokerage ThinkMarkets.com appeared on the leak site of the Chaos ransomware group, with internal files exfiltrated during a ransomware attack. The company, founded in 2010 and headquartered in London and Melbourne, serves customers across the Asia-Pacific, Middle East and North Africa, Europe, and South America. While the exact number of affected individuals remains unknown, anyone who has ever opened an account, shared identification documents, or provided banking details with ThinkMarkets may have personal information now in attackers’ hands.

What's Publicly Reported from Reporting

Public reporting indicates that Chaos actors successfully exfiltrated internal files from ThinkMarkets’ systems before encrypting them. The data was published on the group’s leak site hosted on the dark web. No confirmed total of records or precise list of exposed file types has been released by the company, but ransomware incidents of this nature routinely include customer account records, identification scans, contact information, and financial details.

ThinkMarkets has not yet issued a public statement detailing the scope. Industry trackers monitoring the Chaos leak site list the brokerage as a confirmed victim with data already posted for download by other criminals.

Why This Matters for You and Your Family

If you or anyone in your household has traded, invested, or held an account at ThinkMarkets, your personal data could now circulate among cybercriminals. A single leaked brokerage record often contains your full name, address, date of birth, government identification numbers, email, phone number, and banking information. Once that data leaves the company’s control, it can be sold, combined with other leaks, and used to target you for identity theft, tax fraud, or unauthorized account access.

Even if you closed your ThinkMarkets account years ago, old records frequently remain in backup systems. Families are especially exposed because one parent’s brokerage file can contain joint account details or references to spouses and children.

The Doxxing and Identity-Chain Risks

Stolen brokerage data rarely stays isolated. Criminals use it as a bridge to link your real identity to online handles, email addresses, and phone numbers found in other breaches. This creates an identity chain that can lead to doxxing, where your home address, family members’ names, and financial profiles are published on forums or sold to stalkers and scammers.

Credential leaks like this one cascade into account takeovers. A password reused from your ThinkMarkets login can open the door to email, social media, or gaming accounts. Children’s gaming profiles tied to a family email or phone number become easy follow-on targets, exposing them to harassment or further data theft.

Chaos Ransomware Group Track Record

Public reporting attributes the attack to the Chaos ransomware group. The group emerged in 2024 and has quickly built a reputation for targeting mid-sized financial services and technology companies. Notable prior victims include smaller brokerages, payment processors, and regional banks. Their typical playbook involves initial access through phishing or exploited remote desktop credentials, followed by rapid exfiltration of sensitive files and deployment of ransomware. They then extort victims by threatening to publish stolen data on their leak site if payment is not made. In many cases they begin selling or distributing samples of the data even before any ransom deadline expires.

What to do

• Run a DoxxScan to map every link between your emails, phone numbers, usernames, and real identity across 13.1B+ breach records and 100+ platforms.
• Rotate the password you used at ThinkMarkets anywhere it has been reused and enable 2FA through an authenticator app rather than SMS.
• Enable continuous DoxxScan monitoring so the next breach exposing your family is caught in hours, not months.
• Cover the household with DoxxScan family coverage that extends to dependents and children’s gaming accounts that often chain back to the same contact details.
• Let remediation specialists handle takedown requests across data brokers and leak sites for you.

The ThinkMarkets breach is a reminder that financial service providers remain prime targets and that your data can surface long after you last logged in. Taking concrete steps now limits how far criminals can travel down the identity chain that begins with this leak. DoxxScan by GalaxyWarden delivers continuous monitoring across 13.1 billion+ breach records and more than 100 platforms, AI-powered identity-chain mapping, hands-on remediation by specialists, and full household coverage that includes children’s gaming accounts.