Bitcoin gained 40 percent in the third quarter as Treasury yields climbed to their highest levels in over two decades, outpacing every major asset class. The token now trades at $85,972, up 2.0 percent over the last 24 hours, fueled by billions in ETF inflows from institutions rotating into regulated crypto exposure.
Altcoins rallied alongside Bitcoin, confirming the arrival of a new bull run. Yet the surge in capital masks a deteriorating security landscape. Crypto suffered 247 hacks and exploits in Q3, resulting in $1.26 billion in losses, according to security firm CertiK.
September was brutal: 99 incidents, the highest count since February 2025, with $768.5 million in losses—the largest monthly total of 2026. Year-to-date security breaches now stand at $2.68 billion.
CertiK's data shows the scale of the problem. Institutions funneling capital through Bitcoin and token ETFs are sidestepping the most vulnerable attack surface—direct DeFi engagement. But on-chain insurance capacity has contracted sharply. According to CoinGecko's State of Crypto Security Report 2026, total on-chain coverage sits at $130.2 million, down 20.2 percent from $163 million last year. The insurance sector cannot keep pace with escalating risks.
Artificial intelligence adds a fresh threat vector. Security firm Blockaid anticipates multiple incidents involving AI agents, with prompt injection—where hidden instructions manipulate an AI system against its user—identified as the most probable attack method.
For traders, the technical picture matters. A decisive break below the Ichimoku cloud would confirm a bearish trend reversal for ether against bitcoin, signaling renewed downside despite the current bull momentum.
