Date: 9 Nisan 5576
From: Rabbi Moshe Sofer
To: Rabbi Shimon
If only the outer seals were damaged and the damage can be attributed to vermin, the wine is permitted, especially in contemporary times when non-Jews do not practice libation rites. However, if the barrel's bung and spigot were also damaged, indicating human intervention, the wine is forbidden due to concern that the non-Jew may have switched inferior wine for the Jew's superior wine, a prohibition that persists even when relying on leniencies regarding nitzok in cases of significant financial loss.
Source: Shu"t Chasam Sofer YD §124