Social Captain (a service to increase a user's Instagram followers) has exposed thousands of Instagram account passwords. The company says it helps thousands of users to grow their Instagram follower counts by connecting their accounts to its platform. Users are asked to enter their Instagram username and password into the platform to get started.

According to TechCrunch : Social Captain was storing the passwords of linked Instagram accounts in unencrypted plaintext. Any user who viewed the web page source code on their Social Captain profile page could see their Instagram username and password in plain text, as they had connected their account to the platform. A website bug allowed anyone access to any Social Captain user's profile without having to log in ; simply plugging in a user's unique account ID into the company's web address would grant access to their Social Captain account and their Instagram login credentials. Because the user account IDs were for the most part sequential, it was possible to access any user's account and view their Instagram password and other account information easily. The security researcher who reported the vulnerability provided a spreadsheet of about 10,000 scraped user accounts to TechCrunch.