The International Agency for Research in Cancer has recognised alcohol as a Group 1 Carcinogen along with tobacco smoke and asbestos (the highest carcinogen rating) since 1988. This means there’s enough evidence to prove that alcohol causes cancer1.
There is no safe level of alcohol consumption in regard to cancer risk. The more you drink and the more often you drink, the greater the risk.
There is no evidence that alcohol consumption decreases your risk of cancer. Furthermore, there is no difference between types of alcoholic beverages (eg. wine, beer and spirits).
via Alcohol and Cancer.