(Bloomberg) -- Thailand’s Securities and Exchange Commission is stepping up supervision of high-yield bonds to boost payment safeguards and investor confidence after several recent defaults and a major accounting scandal rocked the the market for speculative debt, a senior official said. Most Read from BloombergFlorida Governor DeSantis Drops Out of 2024 Race, Endorses TrumpHedge Funds Rake in Huge Profits Betting on Catastrophe RiskPutin Orders Hunt for Property of Russian Empire, Soviet UnionG