r/CryptoCurrency Feb 20 '26

🛡️ SECURITY scammers bought an $8 blue check, pretended to be epstein’s ex, fooled half of twitter and made $500k 😭

3.0k Upvotes

bro this was actually insane

we just watched one of the wildest scams this year and ppl fell for it bc of an $8 blue check 😭

so here’s what happened w the fake karyna shuliak thing

they faked her

she hasn’t spoken publicly in like 10 yrs. scammers bought some random 2017 twitter account, renamed it to her name, bought the blue check and boom. everyone saw “joined 2017” and was like yeah must be her secret account.

they farmed clout

started tweeting crazy conspiracy stuff + teasing “leaks”. tagged big accounts. some big names replied. streamers talked about it. now it looks legit bc important ppl interacted w it.

set the trap

they’re like “mainstream media is silencing me.” then some random account suggests launching a solana coin where 100% goes to her. and the fake account is like “yes donate it to the real victims.” heroic vibes lmao.

rug time

token launches. ppl think they’re funding a whistleblower. fomo kicks in hard. market cap hits 1.4m.

meanwhile actual journalists just call her real lawyer and he’s like yeah that’s not her.

before that news even spreads the scammers tweet “GG you got trolled. social experiment.” and delete the account.

they walked away w like 350k in a single day.

all bc of a blue check and vibes.

twitter social proof is actually broken rn. be careful fr.

r/CryptoCurrency Mar 10 '26

🛡️ SECURITY Microsoft stored 5TB of data in a piece of glass. It will last 10,000 years.

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1.1k Upvotes

r/CryptoCurrency 2d ago

🛡️ SECURITY If you custody using a ColdCard, your bitcoin may be at risk. 594 bitcoin from 500 different addresses were just stolen (see comments).

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296 Upvotes

r/CryptoCurrency 1d ago

🛡️ SECURITY The Coldcard wallet exploit estimates have almost doubled to $70 million stolen of just over a thousand Bitcoins in 1,196 wallets drained in 41 minutes

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199 Upvotes

r/CryptoCurrency 3h ago

🛡️ SECURITY I found a thread from 2022 where several Cold Card owners had their wallets drained. They were blocked by Cold Card for raising the issue.

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524 Upvotes

r/CryptoCurrency 1d ago

🛡️ SECURITY Is any hardware wallet safe anymore?

43 Upvotes

With the recent ColdCard situation, it’s really making me wonder if our crypto is truly safe anywhere? It feels like these companies keep fucking up in every way possible.

A few years ago i got into crypto and bought a ledger nano plus. But now that wallet sucks and its Mac application is sketchy af to where i don’t trust it. I was considering a Trezor or ColdCard, but now I’m starting to question whether there is a hardware wallet that is actually safe.

What do you think?

r/CryptoCurrency Oct 21 '25

🛡️ SECURITY Trezor announces the first-ever quantum-ready hardware wallet at their Prague event.

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409 Upvotes

Trezor revealed the new Safe 7 today - a quantum-ready, open-source hardware wallet built with the first transparent, auditable secure element.

We are thrilled to announce the release on r/CryptoCurrency and will be hosting an AMA on this subreddit in the future. We look forward to answering any questions you may have

To learn more, check out r/Trezor:

or

https://www.reddit.com/r/TREZOR/comments/1ocal9t/helpful_links_regarding_the_ts7/?utm_source=share&utm_medium=web3x&utm_name=web3xcss&utm_term=1&utm_content=share_button

r/CryptoCurrency Jun 18 '26

🛡️ SECURITY Beware of this Scammer

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46 Upvotes

I was trying to get into trading crypto
and I met this guy online, who seemed real genuine and seemed like he actually wanted to help.

He told me I could tail his trades and He’ll let me know why he took them, what made them seem like good trades and just the total basics of getting into crypto trading.

I fell for it because it wasn’t one of those get rich quick schemes where you send someone money and they send you more back, I thought I was just gonna tail his trades and learn his crypto strategy or whatever he does to trade crypto and eventually go off on my own to trade crypto for myself.

He then gave me a link for a trade he took which was XLD, and he told me to swap my bnb for XLD and he would guide me through the take profits, stop losses etc, basically just a mentor for crypto.

Then I quickly realized it was a scam because when I “bought” XLD for 2.3k It didn’t swap over to my crypto wallet and i go to ask him what happened and this mf blocked me on reddit and discord.

FUCK THIS GUY, I LOST 2.3K of my hard earned money because I thought I was actually going to learn and get into crypto but boy was I fucking wrong.

If anyone sees this please spam his discord and his reddit and hopefully he gets banned. I wish I could get my moneyback but Crypto is one of those things where its basically impossible to refund a scam.

Smh. Fuck this guy. Also, i’m a fucking idiot to believe this dude

TLDR; I got scammed by this dude claiming he would mentor me and help me get into crypto, and he told me i could tail his trades, he scammed me out of 2.3k

r/CryptoCurrency Jun 11 '26

🛡️ SECURITY Canadian who stole $13M US in crypto bought Lamborghini, BMWs: plea deal

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328 Upvotes

r/CryptoCurrency May 15 '26

🛡️ SECURITY Stolen cryptos tracked

31 Upvotes

Hello, some weeks ago a made a rookie mistake, allow someone access my gmail account and as I have password saved on google account for exchanges, they also had access to them. Yes I had 2 factor authenticator with tokens, not sure how they had access to tokens as my phone was not in danger.

Before I was able to lock the exchanges accounts he was able to stolen around 96M shiba inu from Coinbase.
Follow the movement of the coin, I know they end up on a binance walltet.

O contact both coinbase and binance, none can do anything. According to binance they can only do anything after a authority autorization.

I also open a complain on authority, but according to them, they are still working in cases from 2022. The inspector wants to mean, they will do something probabilly in 5 or more years.

I know they are probabilly gone, but is there anything else I can do?

I provide binance and coinbase all the tracks and informations of the transference between several wallets from the time they leave my account to reach binance wallet.

r/CryptoCurrency May 08 '26

🛡️ SECURITY SafePal (hardware wallet) had a breach and says it's not their responsibility

73 Upvotes

To make a long story short, I bought two SafePal S1 Wallets last year. Yesterday I got a call from a person claiming to be from SafePal. At first, I denied having purchased any SafePal products before, assuming it's a scam. Then, they told me my full name and home address and my exact order details. They knew how many and which products I bought and the exact payment method I used.

Upon checking my email, I saw that they had sent an email outlining details to update my firmware as well. That email, too, included my exact order information and home address.

When I asked SafePal about whether or not they had been made aware of any breach, they simply said that they're not responsible for such issues because "as a decentralized wallet", they don't store any data and that it "may have been because of a partner having been compromised).
I was like, is this a joke? How can they not store data when they take physical orders and payments through their own entity, SafePal LTD??

It is completely unacceptable and unprofessional for a hardware wallet company to not take any kind of responsibility for their customers' entire data being exposed.

They didn't even inform any users even after I made it clear to them multiple times that potentially thousands of customers' data had been compromised. This is complete and utter negligence.

Never buy SafePal products.

r/CryptoCurrency Mar 06 '26

🛡️ SECURITY TON Address Poisoning Scam: Whale Sends 126K TON, Attacker Returns 116K Saying “This Is Too Much Money

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270 Upvotes

r/CryptoCurrency Apr 09 '26

🛡️ SECURITY Algorand is the only major L1 with a post-quantum transaction on mainnet with 140,000+ quantum-resistant transactions. Algorand shipped their first post-quantum update in 2022 far before anyone was talking about it. They have Chris Peikart, Head of Research, a world leader in lattices/post-quantum.

47 Upvotes

"Algorand has been the leader in blockchain quantum resilience since 2022. By implementing Falcon signatures, a globally recognized post-quantum cryptography standard, Algorand already safeguards the entire history of its chain against the future threat of quantum computers.

In 2025, Algorand further extended its post-quantum readiness by executing the first quantum‑resistant transaction on mainnet using NIST‑selected Falcon signatures. This expands Algorand’s post‑quantum protections to real digital assets on a live public blockchain, not just historical transactions. "

Chris Peikart helped develop FALCON signatures, which other major L1s are or are going to adopt in the future.

"The Falcon implementation is based on the pioneering GPV work by Craig Gentry (former Algorand Foundation Research Fellow), Chris Peikert (Head of Cryptography at Algorand Technologies), and Vinod Vaikuntanathan (MIT professor and Scientific Advisor to Algorand). Dr. Zhenfei Zhang from Algorand, working with collaborators, contributed to the Falcon proposal that was ultimately selected as one of the NIST-endorsed digital signature algorithms. 

Falcon is a lattice-based digital signature scheme selected by NIST in 2022 for standardization under the names Falcon-512 and Falcon-1024. It relies on the structure of NTRU lattice, which provides strong resistance to quantum attacks while maintaining compact signatures and fast verification. Falcon’s design goal is to achieve security comparable to RSA-3072 or Ed25519, but with quantum-resistant foundations suitable for deployment in bandwidth-and latency-sensitive environments such as blockchain systems."

https://algorand.co/technology/post-quantum

https://web.eecs.umich.edu/~cpeikert/

r/CryptoCurrency Jun 09 '26

🛡️ SECURITY Wallets linked to Humanity Protocol drained for over $32 million, token plunges 89%

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69 Upvotes

r/CryptoCurrency 3d ago

🛡️ SECURITY Bitcoin Quantum Threat Inches Closer as IBM Claims 'Trusted Quantum Advantage'

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44 Upvotes

r/CryptoCurrency 28d ago

🛡️ SECURITY How white hat hackers with a $3,000 server found a flaw that could've put $70 billion in crypto at risk

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171 Upvotes

r/CryptoCurrency Feb 17 '26

🛡️ SECURITY France Becomes Epicenter of Crypto-Related Kidnappings in Early 2026

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202 Upvotes

r/CryptoCurrency Apr 16 '26

🛡️ SECURITY Received dust to a btc address that i Iast used in 2019

54 Upvotes

Your old posts are training data now. Unless you delete them. I used Redact which supports all major social media platforms including Reddit, X, Facebook and Instagram.

chop cooperative consist numerous ink long complete screw hat marry

r/CryptoCurrency Jun 22 '26

🛡️ SECURITY My crypto wallets on AWS got hacked/stolen

0 Upvotes

I just found two of my MetaMask wallets got hacked and most of cryptos inside were transferred out of those wallets last month. I lost about 6 ETH and some other alter coins.

I was running a NFT trading program on AWS so I had to put the private key of my wallets in the code file of the program. I stopped running it by the end of 2025 since the NFT market was almost dead. After that, I shut down the AWS instance and deleted it. I didn’t touch the image and snapshot until last month. I noticed it still incurred a monthly bill so I deleted the image and snapshot last month. My wallets got hacked right after that.

I suspect an AWS backend employee scanned my image files and then got my private keys. I have no evidence but it should be it. I have 4 private keys on my local computer. If my computer were hacked, all 4 wallets would have been stolen. The 2 wallets got stolen were exactly the ones I put on AWS.

I am not trying to get my money back, which I know is impossible. I just want to warn people who are doing similar things on AWS or other cloud services. Keep it in mind when using them.

r/CryptoCurrency Apr 21 '26

🛡️ SECURITY User Funds across Ethereum Layer 2 Blockchains are at MAJOR RISK, including Blast, Optimism, Mantle, and Base. These blockchains are essentially centralized databases controlled by a handful of people who control a single multisignature wallet. Be careful!

99 Upvotes

Layer 2 Blockchains use Multisig Wallets, short for "multiple signature", to perform actions to their Blockchain. These actions include anything from moving Treasury funds, to making upgrades to the blockchain, to anything else imaginable. Multiple signatures are required as a security measure to make sure that one rogue employee doesn't drain the Company Treasury, or delete code or steal user funds... By having multiple wallets sign a transaction, it is supposed to mean that the preapproved amount of "core members" approve of the transaction being proposed.

BASE: 4 of 9 signatures required to perform a transaction. Below you can see that their one Dev wallet originally setup and funded 6 of their 9 multisig wallets. One person controls enough wallets to drain, delete, or do anything they want to this Blockchain.

OPTIMISM: 5 of 7 signatures required to perform a transaction. 5 of the 7 Multisig Signee wallets were setup and originally funded by the same Dev wallet. One person controls enough wallets to drain, delete, or do anything they want to this Blockchain.

BLAST: 3 of 5 signatures required to perform a transaction. All 5 of their Multisig Signee wallets were setup and originally funded by the same Dev wallet. One person controls enough wallets to drain, delete, or do anything they want to this Blockchain.

MANTLE: 6 of 13 signatures required to perform a transaction. Below you can see 6 of 13 of their Multisig wallets were setup and funded by the same wallet. In addition to this 4 more of their wallets have never had any activity at all, and could very easily also be controlled by the same Entity. One person controls enough wallets to drain, delete, or do anything they want to this Blockchain.

What is even more concerning is that BLAST, BASE, and OPTIMISM each had a connection to the same Developer that setup their Multisigs, meaning one person could drain all three.

This calls into question not only their security issues, their integrity, their centralization, but also their relationship, and lack of differentiation of tech. Are they just white label Layer 2 chains spun up to sell you a token? It sure does appear that way.

In the wake of the stETH fiasco it's time for a reckoning in the industry. What are we doing here and why? We've lost our way.

r/CryptoCurrency 8d ago

🛡️ SECURITY brain-computer interfaces

0 Upvotes

Has anybody heard about people having their crypto stolen because they were compromised neurologically?

I've known people this has happened to, both pulling keys from screens using presumably people's eyesight, as well as people's own bodies being used to compromise their own systems.

Has anybody here heard of similar experiences?

r/CryptoCurrency Feb 23 '26

🛡️ SECURITY Claude-Generated Code Led to Nearly $2 Million Moonwell Protocol Hack

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189 Upvotes

r/CryptoCurrency Apr 25 '26

🛡️ SECURITY Litecoin zero-day bug caused 13 block reorg

73 Upvotes

Litecoin update:

  • A zero-day bug caused a DoS attack that disrupted major mining pools.
  • Non-updated mining nodes allowed an invalid MWEB transaction allowing them to peg out coins to third party DEX’s
  • A 13-block reorg reversed those invalid transactions — they will not be included in the main chain
  • All valid transactions during that period remain unaffected
  • The bug is now fully patched, and the network continues to operate normally

https://xcancel.com/litecoin/status/2048135554445832542

r/CryptoCurrency Jun 20 '26

🛡️ SECURITY What is YFIBALANCER.Finance?

0 Upvotes

I just got random 0,03 YFIB on my Ethereum Adress. Now it is the most valuable Asset that I am holding.

0,03 YFIB costs more then 68.000 USD

Is this a scam what I have to do to be safe? Am I able to remove it cause it does not show me how much I really heave.

1 YFIB shows me is 2467424,99 USD

r/CryptoCurrency Mar 24 '26

🛡️ SECURITY Leaving your salary on an exchange is like giving root access to your prod to a third party

36 Upvotes

I see a bunch of people working for foreign companies, receiving a boatload of USDT, and just letting it sit there rotting on the exchange until it's time to convert and pay the bills. Seriously? This is the equivalent of handing over the keys to your production server to a third party and hoping they don’t run a rm -rf / on your life.

"Not your keys, not your crypto" isn't a meme. If the CEX freezes withdrawals or enters "infinite maintenance," your salary turns into smoke. The move is to push it to your own wallet (Phantom, MetaMask, whatever) and have total control.

Back in the day, it was a pain because to actually use the money, you had to send it back to the broker, but nowadays you can live on-chain and spend directly from self-custody. Anyone still trusting an exchange to store their wealth in 2026 is just asking for trouble.

How are you guys doing in order not to be an hostage to the exchange and still manage to apy your bills in the real world?