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Hello Hive Learners friends, good night, how are you tonight, I hope you are all in good health always.
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A few days ago I have completed stage 01 (self-introduction) and tonight I will complete stage 02 (security lock in the hive). All good friends, before we go deep into a platform, we must know and understand first how the system and the security in it.
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In hive platform first we have to understand about account security. Because I have understood it, tonight I will share a little explanation about the security key to all of my friends.
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There are four keys in Hive, namely master key, active key, post key and memo key. All of these keys have their respective functions.
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Master key is the most important key which is used to change other keys and can recover account if something happens to your account.
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Active key is to function as transaction activity such as transfer and token exchange.
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Post key is the key that is most widely used for social activities, such as making posts, commenting and voting.
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Memo key is a key that is rarely used, this key is only used to encrypt and decrypt private messages sent via hive.
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If you have not saved the four keys, you can see the steps below to save them.
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![img_0.8839481552750703.jpg](https://images.ecency.com/DQmUJCBxUdtnNd3qexjMBxTvSaw3YjBceSwJt5gkEfxr29Y/img_0.8839481552750703.jpg)

![img_0.7212193303294682.jpg](https://images.ecency.com/DQme4wrEojUGGDaDWbrmHCxxBLc1fhqrUs6n1v6Hhzu7KoZ/img_0.7212193303294682.jpg)

![img_0.7787892695330073.jpg](https://images.ecency.com/DQmT4CQjGA6HtswBPhLKwSafW2f4qbE8ag85aNm1xzroArb/img_0.7787892695330073.jpg)


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Given the very important hive key as described above, of course, must store it in a safe place. Everyone is different in the storage process. We store it in a safe place and easy to find when needed.
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For storage, it needs to be stored in several places, not just one place. Places such as Google Drive, flasdisk, email and many others.
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Just a few explanations from me, sorry if there are still many shortcomings.
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