Pinterest detected suspicious activity on some of its accounts and asked its customers to log in with their Google account OR log in with their Facebook account OR reset their password.
The unauthorized login attempts were made to several Pinterest accounts that might have also contained Pins, boards and messages.
They however added additional monitoring systems to reduce the likelihood of further problems going forward but also recommend the users to sign up for two-factor authentication.
Source: https://www.databreaches.net/pinterest-notifies-users-of-suspicious-activity/
TPRM report: https://scoringcyber.rankiteo.com/company/pinterest
"id": "pin233617123",
"linkid": "pinterest",
"type": "Data Leak",
"date": "12/2017",
"severity": "50",
"impact": "2",
"explanation": "Attack limited on finance or reputation"{'affected_entities': [{'industry': 'Technology',
'name': 'Pinterest',
'type': 'Social Media Platform'}],
'attack_vector': 'Account Compromise',
'customer_advisories': ['Asked customers to log in with Google or Facebook or '
'reset their password'],
'data_breach': {'type_of_data_compromised': ['Pins', 'boards', 'messages']},
'description': 'Pinterest detected suspicious activity on some of its '
'accounts and asked its customers to log in with their Google '
'account OR log in with their Facebook account OR reset their '
'password. The unauthorized login attempts were made to '
'several Pinterest accounts that might have also contained '
'Pins, boards and messages. They however added additional '
'monitoring systems to reduce the likelihood of further '
'problems going forward but also recommend the users to sign '
'up for two-factor authentication.',
'impact': {'data_compromised': ['Pins', 'boards', 'messages']},
'post_incident_analysis': {'corrective_actions': ['Additional monitoring '
'systems',
'Two-factor authentication '
'recommendation']},
'recommendations': ['Use two-factor authentication'],
'response': {'communication_strategy': ['Asked customers to log in with '
'Google or Facebook or reset their '
'password'],
'enhanced_monitoring': ['Additional monitoring systems'],
'remediation_measures': ['Additional monitoring systems',
'Two-factor authentication '
'recommendation']},
'title': 'Unauthorized Login Attempts on Pinterest Accounts',
'type': 'Unauthorized Access'}