Bitcoin

Bitcoin is a new electronic payment system that removes the need for third party financial institutions. It speeds up transactions while reducing costs and minimizing the potential for fraud. The name “cryptocurrency” points to how it uses “cryptographic proof” to work, AKA a blockchain.

Bitcoin’s concept was first introduced in 2008 when a person going by the pseudonym Satoshi Nakamoto shared a white paper titled “Bitcoin: A Peer-to-Peer Electronic Cash System.” In January 2009, the Bitcoin blockchain was launched. 

A new electronic payment system called Bitcoin removes the need for third-party financial institutions. It speeds up transactions while reducing costs and fraud-risk. The name “cryptocurrency” points to how it uses “cryptographic proof” to work, AKA a blockchain.   

Bitcoin has a finite supply of 21 million, which is expected to be reached by the year 2140. Currently, 18.8 million are circulating in the market. Note that Bitcoin represents the concept of the network, while bitcoin (lower-case ‘b’) represents the currency.

Bitcoin is one of the most well-known cryptos as it was the first decentralized currency. 

Currently, BTC’s dominance is above 40%. Bitcoin Dominance is a measure of how much of the total market cap of crypto is made up of Bitcoin. Bitcoin’s influence in the crypto ecosystem could be vulnerable to competition as alternative coins grow in popularity and utility.

A malicious bitcoin wallet server could quietly swap a legitimate payment for a thief's transaction, then wait for its owner to approve the theft. Electrum's latest security patch closes that loophole after attackers exploited the flaw and stole funds. Malicious Servers Turn Bitcoin Fee Bumps Into Theft Electrum released version 4.8.

Electrum Wallet Attack Hid Bitcoin Theft Behind a Fee Increase

Can artificial intelligence (AI) think as well out loud as it does in writing? A bitcoin forecasting experiment conducted by Bitcoin.com News put ChatGPT, Grok, and Claude Opus 5.5 to the test, exposing shaky predictions, questionable reasoning, and a surprising twist: Claude's voice model proved more transparent about its limitations than its text-based counterpart.

Tell Me Lies: Grok, GPT and Claude Voice Modes Guess Bitcoin's Price

Bitcoin's price cracked below $80,000 on Saturday, touching its lowest price in more than a month as leveraged traders absorbed hundreds of millions in liquidations. The weekend selloff handed longtime bitcoin critic Peter Schiff fresh ammunition for an even darker prediction.

Bitcoin Price Sinks to $79,146 as Liquidations Rock Weekend Trading

Spot bitcoin ETFs lost $773 million on Thursday and Friday after three days of net inflows, per SoSoValue data.

Crypto longs lose $404 million in four hours as bitcoin briefly slips below $80,000

Galaxy Digital (NASDAQ:GLXY) CEO Mike Novogratz says Bitcoin (CRYPTO: BTC) has a stronger chance of reaching $100,000 than falling to $50,000 by year-end. He identified $79,000 to $80,000 as a crucial downside zone, warning that a breakdown could undermine the current bullish momentum.

Mike Novogratz: AI Could Be 'Biggest Bubble of Our Lifetime,' Bitcoin to Hit $100,000 in 2026

Chamath Palihapitiya once predicted bitcoin would reach $1 million. Now he says artificial intelligence (AI) will eventually hack the Bitcoin protocol and ultimately send BTC's value to zero. But the billionaire's reversal follows a familiar pattern.

Chamath Palihapitiya Warns Bitcoin Will Hit Zero After Years of Bullish Calls

The securities have financed purchases of nearly 136,000 bitcoin, opening a funding channel that analysts expect to complement the larger ETF market.

Strategy, Strive face balancing act between bitcoin buying and preferred stock dividends

Crypto proponents are once again entertaining the curious connection between McDonald's McRib and bitcoin prices, as the fast-food giant announced the limited-time sandwich will return Oct. 27, reigniting speculation over whether its comeback might serve up a bullish helping of bitcoin price action.

McRib Is Back, and Bitcoin's Weirdest Bullish Indicator Lives On

Bitcoin has sunk below the $80,000 level for the first time in more than one month.

Crypto under weekend pressure, bitcoin slides below $80,000 on U.S. Middle East evacuations

Borrowing against bitcoin and earning income to build their BTC holdings are becoming priorities for long-term investors, Xapo Bank CEO Seamus Rocca told CoinDesk.

Bitcoin's wealthy holders turning to loans and yield as investment habits mature: Xapo CEO

Bitcoin's price traded near $80,500 Saturday morning, Oct. 24, with sellers controlling the shorter time frames despite longer-term technical indicators remaining positive. Exchange aggregation sites recorded a 24-hour low of $80,409, while Bitstamp logs identified support near $80,351 per coin.

Bitcoin Price Faces $78K Threat as Sellers Hammer Key Support

Bitcoin closed a daily candle below its 50-day moving average for the first time since August, as $318 million in long bets were wiped out in a single day. The Line That Broke For roughly two months, bitcoin's 50-day moving average (MA) acted like a floor where every dip toward it got bought.

Bitcoin Slides Under $81K as Trump Breaks a Line Bulls Held Since August

Crypto contracts on Kalshi and Polymarket hit a record $2.7 billion in weekly volume, driven mostly by short-term bets on where bitcoin heads next. What Set the Record Exactly? Weekly notional volume in crypto-related contracts on Kalshi and Polymarket reached a record $2.

Bitcoin Bettors Push Kalshi and Polymarket to a Record $2.7B Week

Byron Donalds wants governments to hold bitcoin, opposes a Federal Reserve-issued digital currency, and doubts federal agencies can keep pace with the markets they oversee. In an Oct. 17, 2026, interview with Bitcoin.com News, the Florida congressman and gubernatorial candidate discussed strategic reserves, his race against former rep.

‘CLARITY Is About as Good as You Can Get'—Byron Donalds Talks Bitcoin, Prediction Markets and Florida

Following weeks of macro-induced pressure and persistent outflows, U.S. spot Bitcoin ETFs logged $527 million in net single-day inflows, marking the strongest daily capital influx recorded in over a month.

Spot Bitcoin ETFs Rebound with $527 Million Inflows

Bitcoin investors are looking to the outcome of the upcoming mid-term elections, upcoming Federal Reserve policy meeting and tech earnings to see what's next.

Bitcoin Investors Look To Mid-Term And Fed Meeting Results Amid Range-Bound Trading

Ethereum

Solana

Bitcoin (CRYPTO: BTC) held roughly 57% of the digital asset market as of Oct. 10, its highest share since November 2022, according to Glassnode and Fasanara Digital. Why Capital Stayed Concentrated in Bitcoin Glassnode and Fasanara Digital wrote in the report that smaller tokens fell roughly 52% from their October 2025 peak, about 18 points worse than large-cap assets.

Bitcoin, Ethereum, Solana Draw Uneven Corporate Bets—Which Is Gaining Ground?

Bitcoin Core changed its disclosure policy so bugs that can be found "with a simple prompt to an LLM" get fixes as soon as possible, skipping long embargoes.

Bitcoin Core Will Fast-Track Fixes for Bugs AI Can Easily Find

Gold fell below $4,000 and toward its worst week since June as Brent hit $116, while Bitcoin held near $81,500, up about 0.3% over the past seven days.

Bitcoin Price Splits From Gold as Oil Feeds Inflation Fears

Dogecoin

Bitcoin is holding above $81,000 despite heavy institutional ETF outflows and waning momentum in the tech sector.

Bitcoin, Ethereum, XRP, Dogecoin Steady as Traders Brace for Potential Weekend Volatility

Following two days of high volatility, bitcoin traded largely flat around $81,500, putting it on track for its first monthly loss since July.

Bitcoin Price Stuck Near $81K as Oil Surge Rattles Global Markets

Robinhood (NASDAQ:HOOD) says price volatility contracts tied to Bitcoin (CRYPTO: BTC), gold and oil now rank among its fastest-growing prediction market products, even as sports remains the platform's single largest category. Why Financial Contracts Are Catching Up to Sports Robinhood VP and GM for futures and prediction markets JB Mackenzie told the NEXTPredict conference in New York Thursday, as cited by CoinDesk, that Bitcoin, crude oil and gold contracts have started to dominate trading activity.

Bitcoin, Gold, Oil Fuel Robinhood's Prediction Boom: Are Sports Losing the Spotlight?

Developers will now backport fixes and cut releases immediately for flaws flagged as “easily discoverable,” abandoning long embargoes for bugs an attacker can surface with a single AI prompt.

Bitcoin Core Rewrites Its Security Policy for a World Where AI Finds Bugs in One Prompt

Bitcoin Core now fast-tracks fixes and disclosures for vulnerabilities that AI can easily rediscover, ending the long embargoes those bugs once received.

Bitcoin Core Ends Long Embargoes for Bugs AI Can Rediscover

Investors this week were buying bitcoin ETFs but that all changed on Thursday.

News for Bitcoin Crypto (BTC)