Crypto News Today (April 13): Polkadot Exploited for 1B DOT, Bittensor’s Covenant Fallout Deepens, Trump’s 50% Tariff Threat

April 13, 2026 brings a heavy mix of news: Polkadot exploit, Bittensor fallout, and Trump tariff warning. Here’s a quick breakdown of what’s moving crypto and global markets today as the Bitcoin price is trading around $71K. Polkadot Exploit Sees 1B DOT Minted and Dumped Polkadot has been hit by a major exploit that raised