digital signatures expired

[RAMacia]

I get security warning for add-in products about digital signatures expired.
How do I stop them without lowering my sec. level to low? How do I get
renews certificates?

 

[Farty]

I get security warning for add-in products about digital signatures
expired.
How do I stop them without lowering my sec. level to low? How do I get
renews certificates?

AFAIK that has to be done by the plug-in creater/supplier.

 

[RAMacia]

AFAIK that has to be done by the plug-in creater/supplier.


But these are common suppliers like Symantic and Microsoft itself?