Trusteer is a computer security firm responsible for the development of Rapport security software. Trusteer Rapport is lightweight security software designed to protect confidential data, such as account credentials, from being stolen by malicious software (malware) and via phishing. To achieve this goal, the software first includes anti-phishing measures to protect against misdirection and attempts to prevent malicious screen scraping. The software is compatible with Microsoft Windows and Mac OS X and can be downloaded free of charge. Financial institutions offer the software free of charge with a view to making online banking safer for customers. The software is compatible with various browser programs (Microsoft Internet Explorer, Mozilla Firefox, Google Chrome and Apple Safari).