Google-backed research warned that if quantum computing advances faster than expected, security systems for major blockchains such as Bitcoin and Ethereum could be neutralised quickly. The study said elliptic-curve cryptography could be broken rapidly once quantum computing passes a threshold, and raised an on-spend interception scenario during transaction processing. The report cited the XRP Ledger as one of few blockchains testing quantum-resistant approaches, including key rotation, while noting this does not fully solve the threat.

South Korea's financial authorities are tightening overall household debt controls, raising the prospect of wider effects on the property market. Regulators lowered the 2026 target for household loan growth to 1.5 percent from 1.7 percent a year earlier and set a longer-term goal of cutting the household debt ratio to about 80 percent of GDP by 2030. Rules for multi-homeowners' mortgages will be tightened, while penalties for illegal or improper lending will increase.