How Scammers Obtain Your Personal Information and What You Can Do

How Scammers Obtain Personal Information

Scammers use multiple methods rather than relying on a single source to gather personal data from victims.

Phishing and Social Engineering

Scammers impersonate trusted organizations such as banks, delivery services, government agencies, or employers via email or phone calls. Text-based attacks ("smishing"), voice calls ("vishing"), fake websites, online stores, quizzes, surveys, and contests are common tactics to collect personal information.

Malware and Information Stealers

Malware extracts personal information directly from infected devices. "Infostealers" specifically target saved passwords, browser cookies, payment details, and files. Infection occurs through malicious downloads, phishing attachments, compromised websites, or fake applications disguised as legitimate software.

Data Breaches

Even without user error, data breaches at companies or online services expose email addresses, phone numbers, names, passwords, payment information, and birthdates. Stolen credentials are reused in subsequent fraud attempts or sold to other criminals on the dark web.

Public Sources and Data Brokers

Not all information is stolen. Social media profiles reveal workplace, family, location, birthdate, interests, and travel plans. People search websites, public records, and data brokers provide additional information like contact details and demographics.

Physical Methods

Offline information gathering includes shoulder surfing to observe PIN entry, card skimming devices to capture payment card data, stolen mail containing banking information, and improperly discarded documents.

How Scammers Combine Information for Fraud

Kaspersky's 2025 research found that 88.5% of analyzed phishing attacks aimed to steal login credentials. Scammers combine data from multiple sources. For example, an email address from a data breach and an employer name from social media can create a convincing phishing message appearing to come from that company's IT department.

Knowing someone's personal information does not prove the caller or sender is legitimate.

What to Do If Your Information Has Been Compromised

If Passwords or Credentials Are Exposed

Change passwords for all affected accounts immediately, especially if the same password was reused elsewhere. Enable two-factor authentication (2FA) where available, monitor accounts for unauthorized access, and review recent activity.

If Payment Card or Banking Details Are Exposed

Contact your bank or card issuer immediately. Ask if the card or account needs to be blocked or replaced, and review recent transactions.

If Identity Documents or Sensitive Data Are Exposed

Contact the appropriate issuing authority for guidance. Monitor for unfamiliar accounts or applications created in your name, and report suspected identity theft.

If Email Address or Phone Number Are Exposed

Be cautious with unexpected messages and calls, especially those containing genuine personal data. Avoid suspicious links and independently verify requests.

If Browser Cookies, Active Sessions, or Malware-Related Data Are Exposed

Scan and clean the affected device using reputable security software. Then change important passwords from a clean device, revoke active sessions where possible, and review account activity.

Preventive Measures to Protect Your Information

Respond Carefully to Messages and Calls

Be cautious with unexpected communications, especially those creating urgency or requesting account access. Even if appearing from trusted organizations, verify through official contact before sharing information or granting access.

Strong Password Management

Use unique passwords for each online account. Store them securely in a password manager. Enable two-factor authentication (2FA) wherever available.

Device Protection

Download applications and software only from trusted sources. Install security updates promptly. Use reputable security software to detect malicious files, websites, and other threats.

Online Privacy Settings

Review privacy settings on social media platforms. Avoid unnecessary public information such as birthdates, family details, or travel plans. Delete unused accounts and remove personal information from services you no longer use.

Monitor for Data Breaches

Stay alert to data breach notifications and suspicious login warnings. While these precautions cannot prevent every data breach, they reduce vulnerability and enable response before stolen information is misused.