The attack brought him nothing but creating problems to synchronize wallets (decrease the number of connections for those who have not the necessary settings in the file diamond.conf).
As a result, some wallets were on the wrong chain.
But this is easily eliminated by removing the old blockchain and syncing from scratch using the backup archive.

Use this instruction:  18. Q: https://diamond-info.github.io/#q18
For faster synchronization, you can take a ready-made archive with blockchain (for Windows) https://github.com/DMDcoin/Diamond/releases/download/v3.0.1.1/Z.blockchain.05-02-2018.zip

There are some statistics here: https://www.poslist.org/

if there are issues with synchronization, delete the folder with blocks and resynchronize the blockchain - 18. Q: https://diamond-info.github.io/#q18
to speed up this process, you can take this archive https://github.com/DMDcoin/Diamond/releases/download/v3.0.1.1/Z.blockchain.05-02-2018.zip

Yes, I think it will last another 2-3 years maximum.
After that, on the POW only the most basic coins such as Bitcoin.
And  this is because behind the release of Asic miners are some large chip manufacturers having an impact on this market.
They will try to keep their sales of new chips until the last moment.

Just as a confirmation of my words:
https://news.bitcoin.com/the-anonymous-bitcoin-org-owner-accuses-btc-mining-pools-of-centralization/

Simply put, every 200 DMD gives you a chance to find 1 block every 10 days.
The more groups you have in your wallet, the more rewards you get.
Thus, 2000 DMD give you a chance to find one block every day.

If someone has problems with the connection or has questions about the settings of the wallet, please join the #Slack channel support.
Slack: https://dmdcoin.slack.com/
Slack Invitation: https://bit.diamonds/contact.php (Send us a message via Contact Form)

We had an attack, but as we can see, it didn't do the attacker any good.
Some wallets have strayed from the right chain, but the main nodes are not affected.
Except that the number of connections to the network has decreased for some time.

Some coins have already been easily destroyed by such attacks (e.g. Deviantcoin) but DMD became only stronger.

All who have not yet updated their wallets on the version 3.0.1.1 please do this as soon as possible.
https://github.com/DMDcoin/Diamond/releases/




This will strengthen the network, as this version has twice the number of connections to the default network.

I understand your desire to get out of the EAC, but you should have done it sooner.
I sold all my EAC when this coin was pumped on the missing china exchanger btc38.com along with some other coins.
You should not fear to look truth in the eye and understand that most POW coins will die soon due to lack of income for investors and a waste of energy resources.

For POS stacking you do not need to configure anything.
Just put coins in your wallet and start earning.
The launch of the Masternode requires 10000 DMD and special settings.

This is explained here 8. Q: https://diamond-info.github.io/#q8

There are big differences in the DMD code base from the coins you specify.
The main problem of sudden damage to the base blocks has long been solved.
Most users already know how to set up their own Windows 10 system for continuous operation.
If you continue to experience this damage, I suggest you change the location of the DMDv3 folder.
This is easily solved when running wallet from a shortcut.
You can learn more about it here 23. Q: https://diamond-info.github.io/#q23  or 23. Q: Alternative way https://diamond-info.github.io/#q23-altway

By the way, start the wallet using the shortcut is well displayed in this latest video review on the launch of the Masternode https://www.youtube.com/watch?v=8KxlRohlbAc

Здесь уже неоднократно говорилось о том, что награда в этих монетах, а также все другие розыгрышные мероприятия. переносится на текущую дату рождения DMD.
Cогласно календарю это будет через месяц.

Here already repeatedly said that the award in these coins is transferred to the current date birthday DMD as well as other all events.
According to the calendar, it will be in a month.

More precisely, this will be seen in the next year, when new coins will come to the market.
But today you can see some articles on the topic of warnings about investing in such coins https://news.bitcoin.com/most-masternode-coins-are-a-scam/

I see an active manipulation of the market, with the aim of selling premine.
The coin appeared in February 2018, did not even pass the test of time.
Given that in the system will be 88 million coins, the price of $ 5,8 now looks crazy.
As always in such cases, after a while there will be a lot of screams that someone is again ruined  

Just a small calculation for the cost of an attack on some POW cryptocurrencies - http://bitcoinist.com/cost-51-attack-major-cryptocurrencies/
Note, there is an attack score for Bitcoin Gold.
It is worth thinking carefully before investing big money in such systems.

I hope you read this article https://www.ccn.com/bitcoin-gold-hit-by-double-spend-attack-exchanges-lose-millions/
Someone just makes money on gullible people who believe in the magic prefix bitcoin to the name of any new coin 

This is not a required update. You can stay on version 3.0.1.0 if you want.
But for the correct update, it is enough to simply replace the file diamond-qt.exe (on the windows platform).

Maybe you had some system problems or something.
If your wallet is not syncing or downloading new blocks (if you have an Internet connection), you need to delete the folders blocks and chainstate  and downloading the blockchain archive from Github https://github.com/DMDcoin/Diamond/releases/download/v3.0.1.1/Z.blockchain.05-02-2018.zip
unpack base with the blocks in the folder DMDv3.
This will speed up synchronization.