White Hat Facebook

Masih berhubungan dengan Privasi di Internet, kali ini serangan terbesar buat Mark pada aplikasi jejaring sosial terbesar di jagat maya yaitu facebook yang dengan sengaja karena bug pada sistemnya sehingga kurang lebih 6 juta kontak info dan nomor telepon terekspos keluar

Seorang peneliti keamanan (white hat) menemukan bug tersebut dan melaporkan langsung ke Facebook agar segera ditutup celah keamanannya sehingga tidak merugikan pengguna dan facebook itu sendiri


Celah keamanan tersebut disebabkan karena beberapa fitur yaitu fitur "Orang yang mungkin anda kenal" dan Fitur "Download Informasi anda". Secara teknis ketika orang meng-upload daftar kontak atau buku alamat, Facebook  mencoba untuk mencocokkan data tersebut dengan informasi kontak dari orang lain di Facebook untuk menghasilkan rekomendasi teman. Tetapi Karena bug, beberapa informasi yang digunakan untuk membuat rekomendasi teman di kirim secara tidak sengaja dan disimpan dalam hubungan informasi kontak  sebagai bagian dari akun mereka di Facebook.

Akibatnya ketika kita mendownload informasi akun Facebook menggunakan tool download yang disediakan oleh facebook pada halaman akun, secara tidak disengaja semua informasi termasuk rekomendasi teman ikut terdownload juga.

Hal ini dibenarkan oleh facebook lewat laman resminya Facebook Security (Sabtu, 22 Juni 2013) dengan postingan yang berjudul "Important Message from Facebook's White Hat Program". berikut  ini kutipan pernyataan facebook tentang Bug pada sistem nya

At Facebook, we take people’s privacy seriously, and we strive to protect people’s information to the very best of our ability. We implement many safeguards, hire the brightest engineers and train them to ensure we have only high-quality code behind the scenes of your Facebook experiences. We even have teams that focus exclusively on preventing and fixing privacy-related technical issues before they affect you.


Even with a strong team, no company can ensure 100% prevention of bugs, and in rare cases we don’t discover a problem until it has already affected a person’s account. This is one of the reasons we also have a White Hat program to collaborate with external security researchers and help us ensure that we maintain the highest security standards for our users.


We recently received a report to our White Hat program regarding a bug that may have allowed some of a person’s contact information (email or phone number) to be accessed by people who either had some contact information about that person or some connection to them. 


Describing what caused the bug can get pretty technical, but we want to explain how it happened. When people upload their contact lists or address books to Facebook, we try to match that data with the contact information of other people on Facebook in order to generate friend recommendations. For example, we don’t want to recommend that people invite contacts to join Facebook if those contacts are already on Facebook; instead, we want to recommend that they invite those contacts to be their friends on Facebook. 


Because of the bug, some of the information used to make friend recommendations and reduce the number of invitations we send was inadvertently stored in association with people’s contact information as part of their account on Facebook. As a result, if a person went to download an archive of their Facebook account through our Download Your Information (DYI) tool, they may have been provided with additional email addresses or telephone numbers for their contacts or people with whom they have some connection. This contact information was provided by other people on Facebook and was not necessarily accurate, but was inadvertently included with the contacts of the person using the DYI tool. 


After review and confirmation of the bug by our security team, we immediately disabled the DYI tool to fix the problem and were able to turn the tool back on the next day once we were satisfied that the problem had been fixed.


We've concluded that approximately 6 million Facebook users had email addresses or telephone numbers shared. There were other email addresses or telephone numbers included in the downloads, but they were not connected to any Facebook users or even names of individuals. For almost all of the email addresses or telephone numbers impacted, each individual email address or telephone number was only included in a download once or twice. This means, in almost all cases, an email address or telephone number was only exposed to one person. Additionally, no other types of personal or financial information were included and only people on Facebook – not developers or advertisers – have access to the DYI tool.


We currently have no evidence that this bug has been exploited maliciously and we have not received complaints from users or seen anomalous behavior on the tool or site to suggest wrongdoing. Although the practical impact of this bug is likely to be minimal since any email address or phone number that was shared was shared with people who already had some of that contact information anyway, or who had some connection to one another, it's still something we're upset and embarrassed by, and we'll work doubly hard to make sure nothing like this happens again. Your trust is the most important asset we have, and we are committed to improving our safety procedures and keeping your information safe and secure.


We have already notified our regulators in the US, Canada and Europe, and we are in the process of notifying affected users via email.


We appreciate the security researcher's report to our White Hat program, and have paid out a bug bounty to thank him for his efforts.

 Important Message from Facebook's White Hat Program




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