Understanding Dumpster Diving
Dumpster diving, in the context of cybersecurity, refers to the practice of sifting through a target's trash to obtain valuable information that can be used for malicious purposes. This method is not limited to the digital realm; it involves physically searching through garbage to find discarded documents, storage devices, and other items that may contain sensitive data.
How Dumpster Diving Works
Contrary to the messy image it might conjure, dumpster diving can be a quick and discreet process. In just a few minutes, threat actors could retrieve boxes filled with confidential documents, storage devices, and even workstations. The saying "One man’s trash is another man’s treasure" aptly describes this tactic, as discarded items can be a goldmine of information for attackers.
What Data Can Dumpster Divers Obtain?
Individuals and organizations often discard items without realizing the wealth of information they contain. Some of the data that can be retrieved through dumpster diving includes:
- Email addresses: Useful for phishing attacks.
- Phone numbers: Can be used for vishing (voice phishing) attacks.
- Passwords and access codes: Often jotted down on notepads or sticky notes.
- Financial statements: Including bank and credit card statements.
- Medical records: Containing personal health information.
- Business secrets: Such as product blueprints or business plans.
- Employee information: Which can be used for impersonation or spear-phishing attacks.
- Software and technology details: Providing insights into potential vulnerabilities.
Real-Life Dumpster Divers
Several individuals have gained notoriety for their dumpster diving exploits:
- Jerry Schneider: Started a telephone equipment company using information obtained from Pacific Telephone’s trash. He later founded a security consulting firm.
- Matt Malone: Known as a professional dumpster diver, he began as a zero-knowledge attacker, using discarded documents to breach company systems.
Prevention Measures
The success of dumpster diving attacks often stems from a lack of security awareness. To protect against these attacks:
- Shred all documents containing sensitive information before disposal.
- Wipe storage devices clean of all data before discarding.
- Implement a secure disposal policy within organizations.
- Lock waste bins to prevent unauthorized access.
- Educate employees and individuals about the risks of careless disposal.
Conclusion
Dumpster diving remains a potent threat in the digital age. By raising awareness and implementing preventive measures, individuals and organizations can safeguard their sensitive information from falling into the wrong hands.