Disable copy paste in HTML input fields? [duplicate]
You can disable paste in your input as follows:
html:
<input type="text" value="" id="myInput">javascript:
window.onload = () => { const myInput = document.getElementById('myInput'); myInput.onpaste = e => e.preventDefault();}Talking about security, I wouldn't say that this makes any impact. You would usually use client side and well as server-side validation of data submitted by the user.