Abstract
Recently it has been discovered that login is possible even if there is a typo in ID or password on Facebook. Facebook explained, "For the convenience of users, we allow some level of error in ID or password." In addition, "Security issues such as hacking are safe because they are strictly limited in the scope of typos and identify password entry methods rather than simple typographical errors." In this paper, We want to confirm Facebook’s claim. We can analyze the type of typos of users and guess these effects. And We want to check the problem of the function that allows typos. Facebook is used by many people in many countries. That is also being serviced in Korea. Allowing typos means that Facebook save password in plain text. The Korean Privacy law enforces one-way encryption of passwords. When personal information is leaked, there is a lot of problem. Among them, the password has a large extent of damage. because many people use the same ID/password on various sites. The hacker who hacked into one site will attempt to steal information from other sites with the same ID and password. Therefore, the password should store the hash value.
Highlights
Facebook is a representative social network service, with more than 2 billion users
Article History:Received:[11] november 2020; Accepted: 27 December 2020; Published online: 05 April 2021 Abstract: Recently it has been discovered that login is possible even if there is a typo in ID or password on Facebook
Facebook has leaked up to 50 million personal information in 2018, and there have been many other big and small problems related to personal information
Summary
Facebook is a representative social network service, with more than 2 billion users. People upload their daily photos to personal data on Facebook. Recently it has been discovered that login is possible even if there is a typo in ID or password on Facebook. If you look at Facebook's “data policy,” it is said that we can provide your information at the request of an investigative agency. Always keep your Facebook privacy settings up to date. The settings described here will help keep your Facebook account more secure. We recommend that you always refer to the official Facebook help page to make sure there are no changes to your privacy and security settings. See the Facebook Terms of Service and Data Policy.
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