It depends. Since IFRS is principle-based as apposed to rule-based such as US GAAP, some may argue that there may be more room for creative accounting practices. However even rule based standards like US GAAP have never been able to rule out the possibility of accounting scandals. Eg. Enron, Tyco, Worldcom,etc. On the other hand principles may make the IFRS stronger in fraud prevention as evasion of a principle may be more difficult to justify.