Online banking security concerns primarily stem from cyber threats such as phishing, malware, and data breaches. Users are often at risk of exposing sensitive personal information like passwords and account details. Additionally, two-factor authentication is not always utilized, making accounts more vulnerable to unauthorized access. Even legitimate transactions can be targeted through man-in-the-middle attacks. Banks also face compliance risks with regulations surrounding data protection. Overall, safeguarding user data and ensuring secure transactions remain critical to maintaining trust in online banking platforms.