Organization Information

Information Security

Keep an Eye on Insider Threats

CyberSafe at USPS™ presents a guide to identifying, avoiding, and reporting insider threats and hacks. An Insider threat is a current or former employee, contractor, or other business partner who has or had authorized access to an organization’s network, and misuses that access to negatively affect the organization's information systems. These individuals are a threat because they possess legitimate access to USPS® information systems.

You are the first line of defense for countering insider threats and maintaining the information security of the Postal Service™. As part of the Postal Service community, we rely on you to protect your credentials and our network.

CyberSafe at USPS highlights key habits and best practices you can adopt to help you identify, avoid, and respond to insider threats and hacks:

n Immediately report phishing emails. Phishing is a fraudulent email sent to an individual with the intent to gain access to his or her secure information. If you suspect an email is a phishing attempt, report it by sending an email to

n Be cautious of your surroundings. You are in a position to potentially observe an insider threat. If you notice a significant change in a coworker’s behavior, especially around the end of his or her employment, report that activity to a supervisor.

n Use a strong password. Create a strong password with a combination of fifteen uppercase and lowercase letters, special characters, and numbers to safeguard your credentials.

n Use discretion when discussing USPS information in public. If discussing your employment with the Postal Service in public, be sure to avoid sharing confidential information.

Always evaluate the security of emails and your work environment to help USPS become a more secure organization. The CyberSafe at USPS website (https:⁄⁄⁄cyber) includes additional helpful tips about information security.

For more information on staying safe online, visit the United States Computer Emergency Readiness team (US-CERT) website (https:⁄⁄⁄ncas⁄tips⁄ST04-003).

Reducing insider threats and cyber hacks are top priorities for Postal Service employees, suppliers, and customers — be vigilant.

As a community, information security is our shared responsibility, so stay CyberSafe!