One source I use regularly for info on security topics is Twitter. I have created a list of good people to follow below and will endeavour to keep it updated, to save people time if they are new to following sources on Twitter.
I recall during Wannacry back in May 2017 that Twitter was a key source of breaking info!
Let me know of any useful people to follow too...
Been apart of my morning for many years now but will forewarn you that people who start telling me about what they had for lunch or intermix politics into a security feed (read thejoker) get dropped pretty fast.
Yes, you can find a lot of information (as well as some misinformation) on Twitter. I've got a few lists as well.
Some accounts I would consider resources, generally providing useful information (although sometimes fairly verbose). There are others I would say are more important, and worth listening to regardless of what they have to say. And, of course, there are always vendors. Whether there is any value in what they have to say varies tremendously, but some do provide the occassional nugget.
There are some in more general technical areas. And then there are the "official" guides: those from the (mostly US) government. Those in the BC/DR space might find some use from these accounts in emergency management. And, I've got a more general and larger group of those in security. (I've even got a special list for those who provide a lot of noise and not much signal, if you know what I mean.)
A few years ago began following on Twitter a true luminary in the INFOSEC field, a university professor well known for broad contributions to the field, sought after for keynote speeches at major conferences. After a year and a half of nothing but near daily vicious and horribly biased political diatribes and not one word about INFOSEC, from this professor, I blocked that source in my Twitter feed.
Color me disheartened.
I also tend to drop those who insist on mixing INFOSEC comments with politics and lunch menus.