Quora Says 100 Million Users Breached in Security Incident

Quora Says 100 Million Users Breached in Security Incident

The names, email addresses and passwords of 100 million users of Quora have been made vulnerable.

About 100 million users of Quora were affected by unauthorized access to one of its systems by a "malicious third party," the website said earlier this week.

Account information, including name, email address, encrypted password and data imported from linked networks when authorized by users may have been compromised. The company said it is logging out all Quora users who may have been affected to prevent any further damage.

"We are in the process of notifying users whose data has been compromised," Quora CEO Adam D'Angelo said in a blog post. 

The breach was discovered last week and did not affect the question and answers that are written anonymously, the company said. 

"We have retained a leading digital forensics and security firm to assist us," the company said. Quora has also notified law enforcement of the breach.

Tim Erlin, VP of product management and strategy at Tripwire says that "unauthorized access" is a phrase that could cover a multitude of scenarios. 

"While we might learn more about the details of this breach, they’re likely to come out well after the news cycle has moved on to the next incident," Erlin said. "This incident is a good reminder that your personal data may be exposed through sites and services you don’t think of as sensitive."

About the Author

Sydny Shepard is the Executive Editor of Campus Security & Life Safety.

Featured

  • 2025 Security LeadHER Conference Program Announced

    ASIS International and the Security Industry Association (SIA) – the leading membership associations for the security industry – have announced details for the 2025 Security LeadHER conference, a special event dedicated to advancing, connecting and empowering women in the security profession. The third annual Security LeadHER conference will be held Monday, June 9 – Tuesday, June 10, 2025, at the Detroit Marriott Renaissance Center in Detroit, Michigan. This carefully crafted program represents a comprehensive professional development opportunity for women in security this year. To view the full lineup at this year’s event, please visit securityleadher.org. Read Now

    • Industry Events
  • Report: 82 Percent of Phishing Emails Used AI

    KnowBe4, the world-renowned cybersecurity platform that comprehensively addresses human risk management, today launched its Phishing Threat Trend Report, detailing key trends, new data, and threat intelligence insights surrounding phishing threats targeting organizations at the start of 2025. Read Now

  • NRF Supports Federal Bill to Thwart Retail Crime

    The National Retail Federation recently announced its support for the Combating Organized Retail Crime Act of 2025. The act was introduced by Chairman Chuck Grassley, R-Iowa, Senator Catherine Cortez Masto, D-Nev., and Representative Dave Joyce, R-Ohio. Read Now

  • ISC West 2025 Brings Almost 29,000 Industry Professionals to Las Vegas

    ISC West 2025, organized by RX and in collaboration with the Security Industry Association, concluded at the Venetian Expo in Las Vegas last week. The nation’s leading comprehensive and converged security event attracted nearly 29,000 industry professionals and left a lasting impression on the global security community. Over five action-packed days, ISC West welcomed more than 19,000 attendees and featured 750 exhibiting brands. Read Now

    • Industry Events
    • ISC West
  • Tradeshow Work Can Be Fun

    While at ISC West last week, I ran into numerous friends and associates all of which was a pleasant experience. The first question always seemed to be, “How many does this make for you?” Read Now

    • Industry Events
    • ISC West

New Products

  • Connect ONE’s powerful cloud-hosted management platform provides the means to tailor lockdowns and emergency mass notifications throughout a facility – while simultaneously alerting occupants to hazards or next steps, like evacuation.

    Connect ONE®

    Connect ONE’s powerful cloud-hosted management platform provides the means to tailor lockdowns and emergency mass notifications throughout a facility – while simultaneously alerting occupants to hazards or next steps, like evacuation.

  • A8V MIND

    A8V MIND

    Hexagon’s Geosystems presents a portable version of its Accur8vision detection system. A rugged all-in-one solution, the A8V MIND (Mobile Intrusion Detection) is designed to provide flexible protection of critical outdoor infrastructure and objects. Hexagon’s Accur8vision is a volumetric detection system that employs LiDAR technology to safeguard entire areas. Whenever it detects movement in a specified zone, it automatically differentiates a threat from a nonthreat, and immediately notifies security staff if necessary. Person detection is carried out within a radius of 80 meters from this device. Connected remotely via a portable computer device, it enables remote surveillance and does not depend on security staff patrolling the area.

  • ResponderLink

    ResponderLink

    Shooter Detection Systems (SDS), an Alarm.com company and a global leader in gunshot detection solutions, has introduced ResponderLink, a groundbreaking new 911 notification service for gunshot events. ResponderLink completes the circle from detection to 911 notification to first responder awareness, giving law enforcement enhanced situational intelligence they urgently need to save lives. Integrating SDS’s proven gunshot detection system with Noonlight’s SendPolice platform, ResponderLink is the first solution to automatically deliver real-time gunshot detection data to 911 call centers and first responders. When shots are detected, the 911 dispatching center, also known as the Public Safety Answering Point or PSAP, is contacted based on the gunfire location, enabling faster initiation of life-saving emergency protocols.