Overview of Important Overnight Developments on April 16

1. OpenAI plans to launch a social network, potentially challenging X and Meta;

2. Optimum completes $11 million seed funding round, led by 1kx;

3. NFT project CyberKongz: Investigation by the US SEC has concluded;

4. Solana ecosystem payment protocol Solayer launches a non-custodial crypto debit card;

5. US Republicans reportedly considering a 40% tax rate for millionaires to offset tax cut costs;

6. Zcash possibly being delisted from a CEX, causing industry dissatisfaction and renewed regulatory pressure on privacy coins;

7. ZKsync: Administrator accounts for three airdrop distribution contracts were hacked, with the attacker minting approximately 111 million ZK tokens.