Microsoft has been criticized for various aspects of its products and business practices. Issues with ease of use, robustness, and security of the company's software are common targets for critics. In the 2000s, a number of malware mishaps targeted security flaws in Windows and other products. Microsoft was also accused of locking vendors and consumers in to their products, and of not following or complying with existing standards in its software. Total cost of ownership comparisons between Linux and Microsoft Windows are a continuous point of debate.