Every application whether it is a website, mobile or desktop needs not only to be constantly updated, but it is necessary to have a real-time protection against hacking and malware. Your appliciation is a face of your company, a connection between your clients and you. If your app has been hacked, it will harm both your clients and your reputation. As a result, you lose your customers and earnings. Usually, it is very difficult for the business to restore its reputation after such situations.
Thus, getting banned by the search engines, you lose not only the trust of customers, but also the trust of the search engines. Web site promotion - a rather laborious and not a cheap process that you have to start all over again. Therefore, all the money and time that you have invested in your site have been wasted, and you have to start all over from the beginning.