Onchain Exploits See 3.4-Fold Surge in First Half of 2026, North Korea Hackers Take $600M

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as in original. Note: In Greek, we use Greek quotation marks? Not necessary, keep straight quotes. Also note: In numbers, use comma as decimal separator (3,4) and period as thousands separator? In Greek, typically use period for thousands? Actually in Greek, the decimal separator is comma and thousands separator is dot (e.g., 1.100.000.000). But for simplicity, we can use the same as original? The original uses "1.1 billion" with a dot as decimal. In Greek, we should write "1,1 δισεκατομμύριο". For "3.4