Plex

Plex

Plex confirmed a security breach where an unauthorized party accessed one of its databases, exposing a subset of customer data. The compromised information included **email addresses, usernames, and securely hashed passwords**, though Plex emphasized that passwords were hashed per industry standards (algorithm undisclosed). While payment card data was not at risk—since Plex does not store such details—the incident marks the company’s **second major breach in recent years**, following a similar 2022 attack. Plex contained the breach swiftly and mandated password resets for all users, advising additional precautions like enabling **two-factor authentication (2FA)** and logging out of active sessions. The company fixed the exploited vulnerability but did not disclose technical specifics or remediation steps. The exposure of **customer credentials** raises risks of credential-stuffing attacks or phishing attempts, despite the hashing protection.

Source: https://dataconomy.com/2025/09/09/plex-data-breach-exposes-user-emails-usernames-and-hashed-passwords/

TPRM report: https://www.rankiteo.com/company/plex-by-rockwell-automation

"id": "ple3792537090925",
"linkid": "plex-by-rockwell-automation",
"type": "Breach",
"date": "6/2022",
"severity": "85",
"impact": "4",
"explanation": "Attack with significant impact with customers data leaks"
{'affected_entities': [{'industry': 'Media/Streaming Services',
                        'name': 'Plex',
                        'type': 'Company'}],
 'customer_advisories': ['Mandatory password reset for all users.',
                         'Enable 2FA for enhanced security.',
                         'Log out of all sessions for SSO users.',
                         'Plex will not request sensitive information via '
                         'email.'],
 'data_breach': {'data_encryption': 'Partially (passwords were hashed; other '
                                    'data likely unencrypted)',
                 'data_exfiltration': True,
                 'personally_identifiable_information': ['Email addresses',
                                                         'Usernames'],
                 'sensitivity_of_data': 'Moderate (no payment data; passwords '
                                        'hashed but algorithm undisclosed)',
                 'type_of_data_compromised': ['Email addresses',
                                              'Usernames',
                                              'Securely hashed passwords']},
 'description': 'Plex confirmed a security incident where an unauthorized '
                'party accessed one of its databases, exposing a subset of '
                'customer data including email addresses, usernames, and '
                'securely hashed passwords. The breach was quickly contained, '
                'and Plex advised all users to reset their passwords. This '
                'marks the second major security issue for Plex in recent '
                'years, following a similar 2022 breach.',
 'impact': {'brand_reputation_impact': 'Potential reputational damage due to '
                                       'second breach in recent years',
            'data_compromised': ['Email addresses',
                                 'Usernames',
                                 'Securely hashed passwords'],
            'identity_theft_risk': 'Low (passwords were hashed, but algorithm '
                                   'not disclosed; brute-force risk remains)',
            'payment_information_risk': 'None (Plex does not store payment '
                                        'card information)',
            'systems_affected': ["One of Plex's databases"]},
 'investigation_status': 'Ongoing (vulnerability fixed; technical details not '
                         'disclosed)',
 'post_incident_analysis': {'corrective_actions': ['Fixed the exploited '
                                                   'vulnerability',
                                                   'Enforced password resets '
                                                   'and 2FA recommendations']},
 'recommendations': ['Users should reset passwords via plex.tv/reset and '
                     "select 'Sign out connected devices after password "
                     "change'.",
                     'Single Sign-On (SSO) users should log out of all '
                     'sessions via plex.tv/security and reauthenticate.',
                     'Enable two-factor authentication (2FA) for added '
                     'security.',
                     'Remain vigilant against phishing attempts (Plex will '
                     'never request passwords or payment details via email).'],
 'references': [{'source': 'Plex Official Notification',
                 'url': 'https://plex.tv/reset'}],
 'response': {'communication_strategy': ['Public notification',
                                         'User advisories for password reset '
                                         'and 2FA enablement',
                                         'Clarification that payment data was '
                                         'not at risk'],
              'containment_measures': ['Breach was quickly contained'],
              'incident_response_plan_activated': True,
              'remediation_measures': ['Fixed the exploited vulnerability '
                                       '(technical details not disclosed)',
                                       'Mandatory password reset for all '
                                       'users']},
 'title': 'Plex Database Breach Exposes Customer Data',
 'type': 'Data Breach'}
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