A warning greeted the registered developers of Apple today.

"Sensitive personal information was encrypted and cannot be accessed, however, we have not been able to rule out the possibility that some developers' names, mailing addresses, and/or email addresses may have been accessed," the website stated.

On Thursday, the website also posted a warning stating that a hacker attempted to secure "personal information of our registered developers." The site was shut down afterwards but was put back up a few days later.

The company said that it has been updating its servers and rebuilding its entire database to prevent loss of inforamtion. Apple said that the website will be up as soon as the preventive maintenance was finished.

The website is used by app developers for the iOS. Apple's creation of the iOS platform spawned a whole new industry in app development. Startups focusing on developing applications have risen from small scale operations to big time acquisitions such as Waza, which was bought by tech giant Google.