Restrict routing between VLANs

I'm setting up an x440-g2-10g for a new building in our campus. The new building will house a department that processes sensitive information. I made them their own data vlan for just that building. Now what I really want to do is prevent all other vlans besides our datacenter vlan from communicating with this new vlan. What's the right way to tackle this? I wasn't sure if private VLANs would work in this instance or if I need to use an ACL or something else.


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