Email and Telegram Notifications
SteemData Notify is a free blockchain monitoring service, that sends you (the account owner) Email and Telegram notifications when Payments and critical Account Changes occur.
Example use case
Alice has $10,000 SBD in her savings wallet. Unfortunately, Alice trusted a 3rd party app with her Active key in the past, and this app got hacked recently.
Alice is on her summer vacation, and doesn't monitor her Steemit web wallet on a daily basis. Meanwhile, the hacker triggers a 3 day process of withdrawing the $10,000 SBD from savings, with the intent of stealing it.
Fortunately Alice uses SteemData Notify, sending her immediate notification, which alerts her to cancel the withdrawal, and change her keys, locking the hacker out.
Dust payment based Authentication
Every change of settings on your account in SteemData Notify is authenticated by a dust payment to @null, containing an unique hash as a memo.
The memo hash is derived from a cryptographic signature of the serialized settings object. This ensures that the account owner has authorized a precise and verifiable change. Furthermore the integrity of settings in the SteemData Notify database can be verified at any time. Your private keys are never exposed to any 3rd party in this process.
Try it: notify.steemdata.com
Please note that SteemData Notify is a free service, provided on an as-is basis, with no guarantees of uptime or correctness. Source code is available on github.