As you would expect, the safest stock trading platforms come from the overall best and most trustworthy brokers. We see the following brokers as offering the safest stock trading experience in 2023: IG: Established 1974; over 400,000 client accounts. Interactive Brokers: Established 1977; over 1 million client accounts. FinecoBank: Established 1999; 1.4 million client accounts. Saxo Markets: Established 1992; 829,000 client accounts. Features such as two-factor authentication and proper security measures across a broker’s websites, platforms and applications are also important factors in trustworthiness and will have you covered in the event of a compromise. Our picks above have a strong pedigree and history, with sizeable assets under management, meaning your funds should be safe with these providers in the long term.