Emerging scientific consensus that it is carcinogenic.
It’s not talc itself, but the packaged product may have contained asbestos in some cases in the past and very much depends where talc is mined. So talcum powder might be or have been carcinogenic, but talc itself isn’t (it’s just a clay mineral).
Issue is asbestos can be found in the same places as talc and contaminated talc powder products in the past. It’s banned from talc powder now and I think some countries substitute the talc for other stuff. However asbestos is nasty stuff and lingers for decades. You might have had talc used as a baby/kid, and this could kick in 20, 40 or more years later. Though danger is mainly from breathing in fibres, and it seems with women in the genital area. Not sure it would be an issue for guys “down there”. The link with ovarian cancers isn’t proven, but admission by J&J that they knew about asbestos in the powder has resulted in big lawsuits against them succeeding.
Didn’t even know talc was a mined mineral until recent years when all this hit the headlines and I looked up what the stuff actually was.