PIN: A secret pin that allows you to decrypt your message, pass it to the recipient through another communication channel, such as a phone or sms, or other messenger. Leave blank if you do not want additional security.
Reads: The number of reads determines how often the data can be shared, before it deletes itself. 0 means unlimited.
TTL: You can add a TTL (time to live) to the data, to automatically delete it after a certain amount of time. 0 means no TTL.
Clicking Share will generate a new symmetrical key and encrypt your data before sending only the encrypted data to the server.