Magento read-only and hidden product attributes

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I would like to have some Magento product attributes that are not editable from the admin interface and some that are not visible at all in that interface (as a method of storing some persistent information about a product that should not be viewed by human users.. it's the only way of doing this that i can think of, any other suggestions are welcome).

So my question is: Do all Magento attributes have to be visible and editable from the admin interface? If not, how can they be made read-only or hidden?

I noticed that in the admin interface there are some read-only fields, so it must be possible to do this one way or another. After searching stackoverflow for this I found a possible solution involving JavaScript, but I would like to not go down that path if it's at all possible.

hidden magento readonly attributes
7 Answers

etc\adminhtml\events.xml

    <?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Event/etc/events.xsd">
    <event name="catalog_product_load_after">
      <observer name="product_lock_attributes" instance="Vendor\Module\Observer\Lock"/>
    </event>
</config>

Observer\Lock.php

namespace Vendor\Module\Observer;
 
class Lock implements \Magento\Framework\Event\ObserverInterface
{
    public function execute(\Magento\Framework\Event\Observer $observer)
    {
        $event = $observer->getEvent();
        $product = $event->getProduct();
        $product->lockAttribute('attribute_code');
     }
}
user_141432960
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