C validating business rules Sexo wechat
These definitions are used within this document: Ensure that data is not only validated, but business rule correct.
For example, interest rates fall within permitted boundaries.
The account select option is read directly and provided in a message back to the backend system without validating the account number if one of the accounts provided by the backend system.
An attacker can change the HTML in any way they choose: rather than account names.
However, there are bad, good and "best" approaches.
Often the best approach is the simplest in terms of code.
Data from the client should never be trusted for the client has every possibility to tamper with the data.
Business rules are known during design, and they influence implementation.It can take upwards of 90 regular expressions (see the CSS Cheat Sheet in the Development Guide 2.0) to eliminate known malicious software, and each regex needs to be run over every field. Just rejecting "current known bad" (which is at the time of writing hundreds of strings and literally millions of combinations) is insufficient if the input is a string.This strategy is directly akin to anti-virus pattern updates.Essentially, if you don't expect to see characters such as ?or Java Script or similar, reject strings containing them.