Last week, the Steem development team released a Denial of Service vulnerability fix [V.0.20.10] for the blockchain.
We had upgraded our servers already but forgot to mention it in an update on our blog!
With this post that is now also fixed!
Also, our thanks to @netuoso for finding this vulnerability and informing Steemit Inc.
The vulnerability involved the pending transaction queue. We've been working on, and testing, various solutions since we were informed of the vulnerability by @netuoso about 2 weeks ago. Due to the nature of the attack, we could not publicly disclose our work on this issue and we even limited knowledge of the vulnerability within the organization to minimize risk.
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Makers of Steemify. The dedicated notification app for anything happening on the Steem blockchain.
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