Security concerns dominated the market landscape on 18 Oct 2026, creating caution as multiple network exploits occurred.

The Ethereum Glamsterdam upgrade reached its final testnet stage, which our AI scored as bullish at +7, marking a rare bright spot for $ETH.

Several security events weighed on sentiment, including a Ledger hardware incident involving 90 million USD that scored -8, and network halts for Qubic and Cysic that both scored -9.

The UNCX protocol confirmed a 1.5 million USD loss due to a share accounting flaw, resulting in a -7 score, while CoreWeave faced an insider trading alert that scored -7.

Institutional regulatory developments regarding a major exchange added to the cautious tone as the market processed these updates.

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News scores, not financial advice.