Version 1 of the protocol uses a shared secret, the token secret, which is never transferred over the wire. Hence stealing an access token is like stealing a key without a key bit. It won’t fit any lock.

Facebook announced this morning that between 50 and 90 million accounts have been breached due to unnamed hackers stealing the access tokens of other users: If an attacker is able to take your access-token and add it to their browser, the web application will think their browser is logged in as you.

Obtain User Access Token

1. Go to Graph API Explorer.
2. In Facebook App, select an app used to obtain the access token.
3. In User or Page, select User Token.
4. Under Permissions, check ads_read .
5. Click Generate Access Token. The box on top of the button is populated with the access token.
6. Store that token for later use.

An access token is an opaque string that identifies a user, app, or Page and can be used by the app to make graph API calls. It is generated using a pre-agreed secret between the app and Facebook and is then used during calls that change app-wide settings. You obtain an app access token via a server-to-server call.

The personal data of over 500 million Facebook users was posted in a low-level hacking forum. It includes phone numbers, full names, locations, email addresses, and biographical information. Security researchers say hackers could use the data to impersonate people and commit fraud.

To get your codes:

1. Tap in the top right of Facebook.
2. Scroll to the bottom and tap Settings, then tap Security and Login.
3. Tap Use two-factor authentication.
4. Enter your password and tap Continue.
5. Tap Recovery Codes, then tap Show Codes.

160,000 accounts
A: Facebook has about 2.89 billion users, and it’s been estimated that about 160,000 accounts are hacked every day.

While there are no dedicated tools available to check if Facebook information was included in the leak, users can check if their data was compromised through their email. According to HIBP, only about 1 percent, or 2.5 million, of the records from this Facebook leak included email addresses.

The security token always generates a random code for every transaction thereby making it impossible for another person to carry out online transactions from your account. There is no need to visit a branch.

Due to the lack of CSRF protection, an attacker can fool Facebook’s systems and grab the access_token of the victim. Facebook has now fixed the bug and awarded $5,000 bounty to the white hat hacker.

In order to work with Elfsight Facebook Feed, you need to check the following ones: Press Get Access Token. Confirm all the requests. Click Info icon next to the token. Press Open in Access Token Tool. Press Extend Access Token.

Access token is only valid for two months, so make sure you take all these steps again in two months, to refresh the Facebook token. Now you have read the whole article and if you still have questions, check our FAQ.

Facebook has now fixed the bug and awarded $5,000 bounty to the white hat hacker. T o make logging into applications and services easily, Facebook introduced Facebook Login for devices. Mainly focused on Internet of Things devices, people could use it for logging into Smart TVs, digital photo frames etc.