A symbol of industrial resurgence in West Bengal, HPL has led the economic growth of the region by propelling significant investments in downstream processing industries, which generate huge employment opportunities for skilled and unskilled workers.Through strategic market focus, innovative product application development and excellent customer support services, HPL has played the role of a catalyst in emergence of more than 500 downstream processing industries in West Bengal with a capacity to process more than 3,50,000 TPA of polymers and generating more than 1,50,000 employment opportunities in the process.Recent changes to the landscape mean that the number of false-negatives will increase, particularly due to: To ensure an address is deliverable, the only way to check this is to send the user an email and have the user take action to confirm receipt.
Free-form text, especially with Unicode characters, is perceived as difficult to validate due to a relatively large space of characters that need to be whitelisted.
If it's well structured data, like dates, social security numbers, zip codes, e-mail addresses, etc.
then the developer should be able to define a very strong validation pattern, usually based on regular expressions, for validating such input.
Data from all potentially untrusted sources should be subject to input validation, including not only Internet-facing web clients but also backend feeds over extranets, from suppliers, partners, vendors or regulators, each of which may be compromised on their own and start sending malformed data.
Input Validation should not be used as the primary method of preventing XSS, SQL Injection and other attacks which are covered in respective cheat sheets but can significantly contribute to reducing their impact if implemented properly.