Hi Hive Learners. On this occasion, I want to take part in Learning Stage 02 is Officially Live. I will try to complete this task. ![hl_blog.jpg](https://images.ecency.com/DQmegsABbnjXSgoxMaqmSs54PcfhpyzFtjaX8UbYnTczGjB/hl_blog.jpg) I know a lot about the security keys contained in Hive, such as Active Key, Owner Key, Posting Key, Memo Key. The security keys contained in Hive certainly have their own security. The first Hive security key is given upon completion of account registration. Where the security key is provided in the form of a PDF file. #### The functions/permissions functions are ![keys_permision.jpg](https://images.ecency.com/DQmVfAkYdSvTrFq5fkM6zqRsEebWKURNNf3rpuhmGMgPHZH/keys_permision.jpg) **Posting Key permissions** Use your Posting Key to: Publish a post or comment, Edit a post or comment, Upvote or downvote, Reblog content, Follow people Mute accounts. **Active Key permissions** Use your Active Key to: Transfer tokens, Power HIVE up or down, HBD conversion, Vote for witnesses, Place an order on an exchange, Certain profile changes, Publish a Witness price feed, Create a new user. **Owner Key permissions** Use your Owner Key to: Reset Owner, Active, and Posting keys, Recover your account, Decline voting rights. **Memo Key permissions** Use your Memo Key to: Send an encrypted message, View an encrypted message. I keep the Hive security key in a safe place and avoid losing it, namely in Gmail, Google Drive, Computer external hard drive and also in cellphone records. Cc: @prayzz @kronias Thanks you! @nice-macro