South Korea’s Financial Supervisory Service (FSS) has launched a probe into rising deposit fee rates at major crypto exchanges, including Upbit, Bithumb, Coinone, Korbit, and Gopax. This follows Bithumb’s proposed hike from 2.2% to 4% and similar moves by other platforms, raising concerns over fairness and user burden. The investigation seeks clarity on how these fees are calculated and whether they align with actual operational costs. Triggered by the recent Virtual Asset User Protection Act, the probe reflects South Korea’s push for greater transparency and consumer protection in crypto markets amid growing regulatory scrutiny and increasing mainstream adoption.