Marcus Helder

Verified

Blockchain Forensics Lead, ex-Chainalysis

28,450 reputation312 answers · since 2021

Eight years tracing illicit crypto flows for law enforcement and private clients. Specializes in cross-chain analysis and mixer demixing.

BTC tracingMixer analysisCross-chain forensics

Recent answers

How can I recover stolen crypto that was withdrawn from my Binance account?

Someone gained access to my Binance account through a SIM swap and withdrew 0.8 BTC to an external wallet. What can I actually do at this point?

Crypto Recovery #binance #sim-swap #btc14298.4k

asked by AndrewK· 4d ago

Can I recover crypto I accidentally sent to the wrong address?

I sent 1,200 USDT to a wallet I copied from old chat history. The wallet doesn't belong to my friend anymore. Is there any way to get it back?

Crypto Recovery #usdt #wrong-address #self-error2011014.2k

asked by MeganT· 11d ago

How long does USDT tracing actually take?

Multiple recovery companies are quoting me different timelines — anywhere from 2 days to 6 months. What's realistic for a TRC-20 USDT trace?

Crypto Recovery #usdt #tron #tracing7875.6k

asked by FrankW· 7d ago

What is blockchain forensics and how does it actually work?

I keep hearing about blockchain forensics during my recovery process. What does it actually involve?

Crypto Recovery #forensics #basics #tracing91116.9k

asked by RachelB· 22d ago

How do I trace stolen Bitcoin step by step?

I want to understand what tracing actually involves before I hire anyone. Can someone walk through the steps?

Crypto Recovery #bitcoin #tracing #diy167912.4k

asked by OmarK· 14d ago

I got scammed by a Telegram investment group — what now?

I joined a 'signals' group, they had a 'manager' guide me, and I deposited $14,000 into their platform. Now I can't withdraw and they ask for more.

Investment Scams #telegram #signals-group #recovery13478.2k

asked by ChrisM· 5d ago

I got scammed by an 'online girlfriend' into sending Bitcoin — can I recover anything?

Over four months I sent about $42,000 in Bitcoin to someone I thought I was in a relationship with. Now they're gone. I'm devastated.

Romance Scams #romance-scam #btc #recovery245916.8k

asked by MichaelD· 11d ago

What is 'chain hopping' and why does it complicate crypto recovery?

I keep reading that scammers 'chain hop'. What does that mean and what can be done about it?

Crypto Recovery #chain-hopping #bridges #laundering4713.6k

asked by Sven· 23d ago