A crypto currency Nightmare happened in the last few months of 2020. A hacker or a group of hackers managed to breach Ledgers customer database leaking personal information to almost 300.000 of their customers.

Ledger customers are receiving phishing mails, phone calls and threats. This is a ten step guide and best practices how to avoid loosing your funds. And this is not only from your Ledger hardware wallet, but also from any account that has been using with the very same mail or phone number with your Coinbase, Binance, blockchain.com or other exchange.

1. Check if your password has been leaked

Go to the site https://haveibeenpwned.com/ where you simply enter your e-mail address. It will show if your mail (together with the Ledger Data Leak) has been breached. Hackers are using this site to look for your e-mail account and if the password has been leaked from other breaches. They will later use that information trying to hack sites where you might used this mail account. …

A client from Norway, the country known to have been inhabited by Vikings, contacted us with a unique story.

He was holding Bitcoin in an open source bitcoin wallet from Schildbach that has been around since 2011. The story is fascinating but somehow sad, how the backward compatibility in crypto is broken.

We received the first email 3.39pm with the text

Hi. I bought XX bitcoin back in 2013 and used a wallet simply called “Bitcoin” that had a B-logo on a yellow background.The …

Blockchain.com (or blockchain.info as it was called previously) have over 50 million wallets created since its inception. Blockchain.com support will not help you if you lost your password, what other options do you have?

If you forget your password but know what email created your wallet, you are able to request an email. They will send you all wallets ever created with that mail. The link for that service is:

If you are not able to remember the password there are several other options to recover the encrypted wallet.

Its possible to use btc recover to download the encrypted backup.

Btc recover can be downloaded…

A famous movie director once told me: “Shooting a movie is just 10% of the work, the other 90% is preparing”. That came into mind recently.

Wednesday 8.55 pm

Someone sends me a request to find the passphrase to his Bitcoin Core wallet password. I reply immediately I would be more than happy to help. There was no answer until the next day.

Thursday afternoon. 2.04 pm

I was at our summerhouse with my cat, making it back to the city after a short break when the reply dropped into my inbox. As always I replied with courtesy the needed steps etc. …

Tokyo city.

I land at Narita Airport, my client said someone will meet me, but I don’t know where and how he looks like.

Exiting through the arrival terminal a gentleman in white gloves has a sign: KeychainX

I don’t ask questions, jump into the limo and off we go into Tokyo city… One hour into ride we arrive at the entrance to a super skyscraper close to Ikachimachi train station. I am left alone in the lobby and wait.

30 minutes later, three young Japanese men come and greet me with broken English.

Chainx?

Confused I ask if its Taro, he smiles. …

An old client of ours got back recently asking if we could help him recover a lost password to Bitcoin core wallet file called wallet.dat.

He believed he had the password correctly written down and did not understand why the password did not work anymore.

We received a list of possible hints, the wallet file and agreed on a fixed fee if we managed to recover his coins. The fee is usually a cut of whatever is inside the wallet and we never charge anything upfront.

The first thing that struck us was that some of the password hints were non UTF-8 characters not available in several language or keyboard layouts. This complicated things as recovering a password requires you to setup a specific set of characters. The bigger space of characters, the longer it takes to recover the password. …

• buy bitcoin
• encrypt your wallet
• forget the password
• call me in 5 years

This is exactly what happened to a gentleman I met last Saturday. He bought Bitcoin for a few thousand dollars when BTC hovered around 100 USD and in 2015 forgot the password after importing it to blockchain.info wallet. He encrypted it twice with a double password.

Blockchain.com (previously blockchain.info) is one of the longest running online wallet services, unfortunately many people forget or lose their login credentials rendering it impossible to access the funds.

To be able to access the backup, you need to know your wallet ID. If you don’t remember the wallet ID it’s possible to ask for a reminder of your WALLET ID. But only if you remember which account created the wallet five years ago. …

Not much. Ledger policy will replace the broken Ledger in some cases, but whatever is inside is lost, or is it?

We have encountered several people who had their old Ledger Nano S broken, Mnemonic words long lost, their only hope was their pin. But what should they do once their Ledger is broken? Ledger warranty or support will only send you a new Ledger if you trade in your broken one. They will not fix the screen, nor will they fix your button to enter the pin, or do any other maintenance to your device. …