A Symantec block page can mean two very different things: your own PC is stopping a site you want to open, or your website has been flagged for everybody. Both problems have a proper fix. Here is the full picture, in the right order.
The message in the video is exact: Malicious Site Blocked - Symantec Endpoint Protection. Symantec's software decided the page was dangerous and stopped it before it loaded. Before you switch anything off, understand this: sometimes the block is protecting you from a genuinely bad site, and sometimes it is a wrong rating that can be corrected. The safe order is always the same - check first, then unblock or dispute. This guide covers both sides: the visitor who cannot open a site, and the site owner whose visitors cannot reach them.
You tried to visit a website that Symantec Endpoint Protection has classified as malicious. Access to the page was blocked for your protection.
Two systems work together inside Symantec and Norton products. The Intrusion Prevention System (IPS) watches browser traffic live and blocks pages whose behaviour matches a known attack pattern. On top of that, Symantec keeps a reputation rating for websites - the same data that powers the Norton Safe Web lookup at safeweb.norton.com. If a domain is rated malicious, or linked to phishing or malware downloads, products block it before it even opens.
That means a block has three possible causes: a live attack pattern, a genuinely bad site, or an incorrect rating. Your job is to find out which one you are looking at - not to defeat the warning.
Never unblock on trust alone. Run the address through independent checkers first:
safeweb.norton.com, enter the domain and read its rating and any threats listedIf several scanners independently flag the site, believe them and stay away. If everything is clean, you are likely looking at a false positive - and now unblocking is a reasonable step.
This is the method shown in the video, for a PC where you control the Symantec client:
Two honest warnings. First, this turns off browser intrusion prevention for every website, not just this one, so turn it back on after testing if you can. Second, on office PCs the client is usually managed: the settings are locked by your IT admin's policy and your change will either be greyed out or reversed. In that case only the admin can allow the site, by adding an exception in the policy.
If the blocked website is yours, changing settings on one PC helps nobody else. The block lives in Symantec's rating data, and every visitor with a Norton or Symantec product will keep hitting it. The owner route is:
Each of those steps has its own detailed guide in this series, linked by topic below the video.
A block page is annoying. A successful phishing page is expensive. Attackers know people hunt for ways around warnings, so fake bank and courier pages often arrive with instructions like first disable your antivirus. Treat any such instruction as the loudest possible alarm. Unblock only sites you have verified yourself with the checkers above - never a site a stranger, caller or pop-up is pushing you towards.
Watch the full video to see the Symantec settings opened step by step on screen, exactly where the option sits.
▶️ Watch Full VideoSometimes yes, sometimes it is a false positive. Verify with independent scanners - Norton Safe Web's report, VirusTotal and Sucuri SiteCheck - before overriding. When several engines agree a site is malicious, treat the block as correct.
On managed office clients the admin policy can lock the setting or re-apply it within minutes. The block can also be coming from a different layer - your browser, a security DNS service or the office proxy. Test from another network to find which layer is stopping you.
Only by fixing the source rating. Clean the site if anything is found, then file a dispute from your Norton Safe Web report page so the domain is re-evaluated. A local unblock changes one PC only.