Yes, in many cases — though the risk-benefit calculation is more nuanced after 60.
For women already on hormone therapy and continuing: Ongoing therapy is generally considered safe as long as benefits outweigh risks. Annual review with your clinician is recommended.
For women starting hormone therapy for the first time after 60: There is a greater risk of blood clots and stroke with oral estrogen specifically. Transdermal forms (patches, gels) have a more favorable safety profile in this context.