crypto security Flash News List | Blockchain.News
Flash News List

List of Flash News about crypto security

Time Details
2025-11-26
05:22
Crypto Trading Security: Richard Teng Lists 3 Essentials - Strong Passwords, 2FA, and Phishing Vigilance

According to @_RichardTeng, security should be prioritized in the digital asset space and personal responsibility is paramount for anyone active in crypto trading, source: @_RichardTeng on X, Nov 26, 2025. He advises using strong, unique passwords, enabling 2FA, and being skeptical of unsolicited links to stay safe, source: @_RichardTeng on X, Nov 26, 2025. He presents these as practical steps traders can implement immediately to remain safe in digital assets, source: @_RichardTeng on X, Nov 26, 2025.

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2025-11-25
07:07
Ledger LNX Hardware Wallet 50% Off Black Friday Deal on Amazon and Flipkart: Self-Custody Risk Management for Crypto Investors

According to @simplykashif, Ledger LNX hardware wallet is available at a flat 50% discount during a Black Friday sale on Amazon and Flipkart, source: @simplykashif. According to @simplykashif, while nothing is 100% safe, using a hardware wallet reduces risk for holding crypto compared with other storage options, source: @simplykashif. According to @simplykashif, the promotion is positioned for long-term investors and traders who prioritize self-custody and asset protection, source: @simplykashif.

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2025-11-25
06:00
CoinMarketCap Issues Urgent Scam Alert for Crypto Traders: No Phone Number, No Calls — Contact CMC-CS for Verification

According to @CoinMarketCap, scammers are impersonating CoinMarketCap staff, and the company states it has no phone number and will never call users. Source: CoinMarketCap on X, 2025-11-25 https://twitter.com/CoinMarketCap/status/1993198118314070060 When in doubt, users should contact CMC-CS for verification rather than responding to unsolicited outreach. Source: CoinMarketCap on X, 2025-11-25 https://twitter.com/CoinMarketCap/status/1993198118314070060 For active crypto traders, any phone call claiming to be from CMC is not legitimate and verification must be routed through CMC-CS to avoid imposter scams. Source: CoinMarketCap on X, 2025-11-25 https://twitter.com/CoinMarketCap/status/1993198118314070060

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2025-11-24
12:27
BTC Update 2025: @Gajpower Clarifies Bitcoin Security Researcher Role (Not Ethereum) — Trading Relevance for BTC vs ETH

According to @Gajpower, they clarified they are a bitcoin security researcher rather than an ethereum researcher, meaning traders should attribute security-related insights from this account to BTC, not ETH; Source: https://twitter.com/Gajpower/status/1992933146380427578

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2025-11-24
10:34
Crypto Theft Alert: Delivery Driver Impersonator Steals $11M in Home Invasion, What Traders Should Know

According to the source, a thief posing as a delivery driver tied up a homeowner and stole approximately $11 million in crypto during a home invasion. According to the source, no specific blockchain assets or wallet addresses were disclosed, limiting immediate on-chain tracking and reducing the ability for traders to monitor potential movements. According to the source, there were no details on exchange involvement, account freezes, or broader market impact, and no tickers were identified.

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2025-11-23
12:00
CoinMarketCap Scam Warning: CMC Will Never DM You First — Verify Before Sending Funds

According to @CoinMarketCap, the platform will never direct message users first and any DM requesting funds is a scam (source: CoinMarketCap post on X, Nov 23, 2025). According to @CoinMarketCap, users should always verify identities before transferring any funds to avoid falling for impersonation attempts (source: CoinMarketCap post on X, Nov 23, 2025). For traders, treating unsolicited DMs claiming to be from CMC as scams and verifying official channels before any transfer helps protect trading capital from fraud risk (source: CoinMarketCap post on X, Nov 23, 2025).

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2025-11-23
07:37
Litecoin (LTC) says MWEB addresses are quantum resistant — official security update for traders

According to Litecoin, its official account stated on Nov 23, 2025 that Litecoin MWEB addresses are quantum resistant (source: Litecoin official post on X, Nov 23, 2025). According to Litecoin, the announcement specifically referenced MWEB addresses and did not include additional technical details in the post (source: Litecoin official post on X, Nov 23, 2025). According to Litecoin, this is an explicit security claim about the MWEB address format that defines the project’s stated posture against quantum attacks (source: Litecoin official post on X, Nov 23, 2025).

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2025-11-22
10:55
2025 Crypto Security Update for Traders: Major Platforms Step Up to Protect Users as Risks Rise

According to @simplykashif, as the crypto ecosystem expands, operational and security risks are increasing and user protection has become a core priority for the market, source: @simplykashif on X, Nov 22, 2025, https://twitter.com/simplykashif/status/1992185223766053251. According to @simplykashif, several major platforms are actively stepping up with security measures to safeguard users and the broader ecosystem, source: @simplykashif on X, Nov 22, 2025, https://twitter.com/simplykashif/status/1992185223766053251. According to @simplykashif, no specific platforms or controls are named in the post, indicating a general industry push rather than a single-company announcement, source: @simplykashif on X, Nov 22, 2025, https://twitter.com/simplykashif/status/1992185223766053251.

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2025-11-18
06:00
CoinMarketCap Issues Urgent 2025 Scam Alert: No Phone Number, Never Calls; Verify via CMC-CS Link

According to @CoinMarketCap, scammers are impersonating CoinMarketCap members; the company states it has no phone number and will never call users; source: twitter.com/CoinMarketCap/status/1990661346942128186. When in doubt, users should contact CMC customer support for verification at coinmarketcap.com/request; source: twitter.com/CoinMarketCap/status/1990661346942128186. Traders should treat any phone outreach claiming to be CoinMarketCap as fraudulent and verify via the official link before responding; source: twitter.com/CoinMarketCap/status/1990661346942128186.

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2025-11-17
15:11
Immunefi IMU Token Sale on CoinList: 113.7M USD FDV, 100% TGE Unlock, 2 Days Left - Key Trading Details

According to @cas_abbe, Immunefi's IMU token sale is live on CoinList with a fully diluted valuation of 113.7 million USD and a 100% unlock at TGE, with the sale ending in 2 days (Source: @cas_abbe). Immunefi is described as a crypto security services platform similar to Palantir for Web2, positioning IMU within the on-chain security narrative that targets hacks costing billions annually (Source: @cas_abbe). The author also notes a new product launch called Shield My Bags, an invite-free tool that shows which assets in a portfolio are secured and offers a referral airdrop, which may influence user engagement around the ecosystem; access links provided are coinlist.co/immunefi and shieldmybags.immunefi.com (Source: @cas_abbe).

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2025-11-17
09:00
Crypto Security Alert: CoinMarketCap Issues SAFU Reminder to Traders on Nov 17, 2025

According to @CoinMarketCap, traders should stay alert and stay SAFU, with a security reminder posted on X on Nov 17, 2025 (source: @CoinMarketCap on X, Nov 17, 2025). The post provided no specifics on tokens, exchanges, or incidents and contained no trade-signal or market-impact details (source: @CoinMarketCap on X, Nov 17, 2025). To reduce account-takeover and phishing risk during trade execution, verify URLs before logging in, enable hardware-key or app-based 2FA, and avoid signing unknown wallet approvals (sources: US Federal Trade Commission security guidance; Cybersecurity and Infrastructure Security Agency phishing guidance).

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2025-11-16
12:00
CoinMarketCap Issues Scam Warning on X: We Never DM First — Verify Messages to Protect Funds

According to @CoinMarketCap, the platform will never initiate direct messages and any DM asking for funds is a scam (source: @CoinMarketCap on X, Nov 16, 2025). According to @CoinMarketCap, users must verify identities before sending any funds to protect trading capital and wallet balances (source: @CoinMarketCap on X, Nov 16, 2025). According to @CoinMarketCap, traders should treat unsolicited DMs as fraudulent and follow SAFU practices to avoid losses that could disrupt trading activity (source: @CoinMarketCap on X, Nov 16, 2025).

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2025-11-14
13:57
OneKey Hardware Wallets Officially Available in UAE: Open-Source, Air-Gapped Self-Custody to Reduce Exchange Counterparty Risk, Plus 5% Discount

According to Cas Abbé, leaving assets on exchanges means relying on the exchange to keep funds safe, while a hardware wallet returns control to the user with no middleman and no counterparty risk, source: Cas Abbé on X, Nov 14, 2025. According to Cas Abbé, OneKey has open-source, transparent, fully air-gapped hardware wallets that are now officially available in the UAE through a local distributor, with a 5% discount via code CAS5, providing a self-custody option relevant to traders seeking to reduce exchange counterparty exposure, source: Cas Abbé on X, Nov 14, 2025.

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2025-11-11
17:02
Altcoin Daily: BTQ ($BTQ) Acquires QPerfect to Build ‘First All‑in‑One’ Neutral‑Atom Quantum Company, Highlighting Crypto Security Impact

According to @AltcoinDaily, BTQ has acquired QPerfect to create what it calls the first all-in-one neutral-atom quantum computing company, emphasizing speed and stability as key advantages, per @AltcoinDaily and the linked BTQ Tech announcement on X. The post explicitly links the deal to stronger protection for crypto networks against future quantum-enabled hacks, placing the news within a quantum-safe blockchain security narrative, per @AltcoinDaily. The acquisition context and neutral-atom focus are positioned alongside the $BTQ ticker for traders tracking post-quantum cryptography and crypto network security themes in market narratives, per @AltcoinDaily. Confirmation of the acquisition reference is provided in BTQ Tech’s post on X as cited by @AltcoinDaily.

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2025-11-11
12:04
CZ warns of AI-generated fake book scam targeting his name, Binance traders urged to verify sources

According to @cz_binance, an AI-generated book circulating under his name is fake and not authored by him, indicating an impersonation scam risk for crypto traders; source: @cz_binance on X, Nov 11, 2025. Traders should ignore and avoid clicking any links promoting a purported CZ-authored book and verify announcements only via his official X handle before taking action; source: @cz_binance on X, Nov 11, 2025. The post contains a scam warning only and includes no token, product, or partnership updates relevant to market moves; source: @cz_binance on X, Nov 11, 2025.

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2025-11-06
11:24
ZachXBT Says He Recovered $250M From Crypto Hacks and Phishing — Trading Takeaways and Security Impact

According to @zachxbt, he has recovered $250M for victims of phishing, hacks, and exploits, with most efforts conducted pro bono, stated in a post challenging accusations and urging data-backed claims; source: @zachxbt on X, Nov 6, 2025. The post provides no case-level details, token breakdowns, or transaction references, meaning no immediate, asset-specific trading signals can be derived from this announcement alone; source: @zachxbt on X, Nov 6, 2025. No specific cryptocurrencies, exchanges, or wallet addresses were mentioned, indicating no direct on-chain follow-through to monitor from this post itself; source: @zachxbt on X, Nov 6, 2025.

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2025-11-03
08:41
Balancer (BAL) Ongoing Multi-Chain DeFi Exploit: Losses Reach $88M, Trading Alert Cited by PeckShield

According to @PANewsCN, the Balancer DeFi protocol is facing an ongoing multi-chain exploit with cumulative losses estimated at about $88 million, based on live monitoring by PeckShieldAlert on X dated Nov 3, 2025. According to PeckShieldAlert, attacker-linked wallets continue moving assets across multiple chains as the incident remains active, with the reported loss figure reflecting cross-chain transfers tied to the exploit. Given PeckShieldAlert’s ongoing updates that the exploit is still in progress, traders can monitor BAL and Balancer-related pool assets for further on-chain movements using PeckShield’s alerts, per @PANewsCN.

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2025-10-28
16:36
Nvidia (NVDA) Announces NVQLink for Quantum Computing: 3 Trading Takeaways for NVDA and Crypto Security Risks (BTC, ETH)

According to @StockMKTNewz, Nvidia (NVDA) CEO Jensen Huang announced Nvidia NVQLink designed specifically for quantum computing, signaling a new interconnect initiative focused on quantum systems (source: @StockMKTNewz on X, Oct 28, 2025). The cited post provides no specifications, timelines, or pricing, so trading decisions should wait for an official Nvidia release or event materials to quantify potential impact on data center or accelerated-computing roadmaps (source: @StockMKTNewz). Quantum-computing advances are closely watched by crypto markets because sufficiently large quantum machines could break widely used public-key schemes like RSA and ECC, accelerating migration to post-quantum cryptography (source: NIST Post-Quantum Cryptography program). Bitcoin and Ethereum currently rely on ECDSA-based signatures, making quantum security a relevant long-term narrative for BTC and ETH risk assessment when quantum headlines emerge (source: Bitcoin.org Developer Guide; Ethereum technical documentation/Yellow Paper).

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2025-10-20
07:18
Insider Testimony: MIT Brothers Allegedly Planned $25M Crypto Heist for Months — Trading Impact and Risk Signals

According to the source, an insider has testified that two MIT brothers allegedly planned a $25 million crypto heist over several months (source). According to the source, the post does not specify the blockchain, tokens, or venues involved, which limits immediate tradeable signals (source). According to the source, with no confirmed wallet addresses or on-chain details provided, traders lack a verifiable catalyst from this headline alone and should avoid directional positioning based solely on this report until official filings or blockchain evidence emerge (source).

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2025-10-19
09:58
Cold Wallet vs Hot Wallet: 6 Proven Ways Traders Can Secure Crypto and Optimize Execution

According to @kwok_phil, traders should understand the security trade-offs between hot (online) and cold (offline) wallets to protect funds and match custody to execution speed needs, source: X post by @kwok_phil dated Oct 19, 2025. Hot wallets are connected to the internet and are convenient for frequent transactions but carry higher phishing and malware exposure, while cold wallets keep private keys offline and reduce remote attack surface, making them better for long-term holdings, source: Binance Academy, Hot vs Cold Wallets; Ledger Support, What is a hardware wallet; Trezor Learn, Cold storage overview. A trading-focused setup is to keep only working capital in hot wallets for rapid fills and maintain core positions in cold custody to limit counterparty and operational risk during volatility, source: Fidelity Digital Assets, Understanding Digital Asset Custody; Binance Academy, How to Store Your Crypto Safely. Strengthen controls by using hardware wallets with an additional passphrase, multisig for larger balances, FIDO2 security keys for 2FA on exchange accounts, withdrawal address whitelisting, and periodic revocation of token approvals to reduce contract risk, source: Ledger Support, Passphrase feature; Safe (formerly Gnosis Safe), Multisig best practices; NIST SP 800-63B, Digital Identity Guidelines; Kraken Support, Withdrawal Whitelist; Etherscan, Token Approval Checker. The risk context reinforces this approach: crypto hacks fell from roughly $3.7B in 2022 to about $1.7B in 2023, yet hot wallets and bridges remain frequent targets, underscoring the value of offline custody for reserves, source: Chainalysis, 2024 Crypto Crime Report.

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