No matter what improvements you do, there is only so much you can do about phishing (since you're basically giving someone your account info in a phishing attack) - however, the best way to prevent phishing is with knowledge. Given the Jagex Launcher remembers your info, even needing to enter your information should cause you to double check whether you actually need to enter your info.
Jagex Accounts are the future - while they are in an early access beta now, they (along with the launcher) will become mandatory going forward. RuneScape accounts as we've known them will be required to be imported to a Jagex Account to play when that happens.
30-Apr-2023 00:01:41