![mindberry - Booking.com: When Things Go Wrong (and Why User Testing Should Include Worst-Case Scenarios) mindberry - Booking.com: When Things Go Wrong (and Why User Testing Should Include Worst-Case Scenarios)](https://www.mindberry.com/relaunchtest/wpblog/wp-content/uploads/2020/02/not-mobile-optimized-email.png)
mindberry - Booking.com: When Things Go Wrong (and Why User Testing Should Include Worst-Case Scenarios)
![Booking.comさんはTwitterを使っています: 「@prajwal_v Our customer care team emailed with an answer to the address saved in the booking, Sunny. We'd advise you not to publicly disclose your PIN code as this is sensitive Booking.comさんはTwitterを使っています: 「@prajwal_v Our customer care team emailed with an answer to the address saved in the booking, Sunny. We'd advise you not to publicly disclose your PIN code as this is sensitive](https://pbs.twimg.com/media/EA8H2VXVAAQuzt5.jpg)
Booking.comさんはTwitterを使っています: 「@prajwal_v Our customer care team emailed with an answer to the address saved in the booking, Sunny. We'd advise you not to publicly disclose your PIN code as this is sensitive
![Manage your bookings - Booking - Booking confirmation BOOKING NUMBER: 1827.779.254 PIN CODE: 1755 DREAM Hostel Warsaw Address: Krakowskie Przedmiecie | Course Hero Manage your bookings - Booking - Booking confirmation BOOKING NUMBER: 1827.779.254 PIN CODE: 1755 DREAM Hostel Warsaw Address: Krakowskie Przedmiecie | Course Hero](https://www.coursehero.com/thumb/8b/fd/8bfd8798bdae47139e88a6f5cb94c225248b3312_180.jpg)
Manage your bookings - Booking - Booking confirmation BOOKING NUMBER: 1827.779.254 PIN CODE: 1755 DREAM Hostel Warsaw Address: Krakowskie Przedmiecie | Course Hero
![Booking.com allowed me to enter someone else's account and cancel their reservation - Zero Day Vulnerability Booking.com allowed me to enter someone else's account and cancel their reservation - Zero Day Vulnerability](https://skillsireupload.s3.amazonaws.com/upload/photos/2020/09/DygnR3wRCNQX7UWn9AqS_08_bccedc51b42f3c1b9fc7d8e9952ae916_image.png)
Booking.com allowed me to enter someone else's account and cancel their reservation - Zero Day Vulnerability
![Twitter 上的 Booking.com:"@ManojKu42225829 Hi, we'll call the hotel on your behalf to confirm your booking status, we've just sent an email to the address in the reservation. You can give our customer Twitter 上的 Booking.com:"@ManojKu42225829 Hi, we'll call the hotel on your behalf to confirm your booking status, we've just sent an email to the address in the reservation. You can give our customer](https://pbs.twimg.com/media/Dmz1jsvX0AATQb7.jpg)