How Software Testing & QA is done today?

Imagine a scenario where your fintech application gets launched on the Google Play Store. It is off to a good start and getting thousands of downloads each month. Until you see a comment that says that their app has been hacked. This could be the end of the road for many companies. To avoid scary incidents like this, a sound testing system needs to be in place and this is where testers or software quality assurance services play a vital role.