Decrease the likelihood of others developing and/or sharing the information
Promote ideas that make the information hazard seem ridiculous or uninteresting. An example that may or may not be happening is the US government enabling stories of extraterrestrial origin to hide the possibility that they have unreasonably advanced aerospace technology, materially, by encasing it in dumb glowy saucer stuff that doesn’t make any sense. (a probably fictional example is good because if someone was smart enough and motivated enough to hide something like this, I probably wouldn’t want to tell people about it (if this turns out not to be fictional, USgovt, I’m very sorry, we haven’t thought enough about this to understand why you’d want to hide it.))
If the information hazard concerned is going to be around for a long time, you might want to consider constructing an ideological structure that systematically hides the information hazard, under which the only people who get anywhere near questioning enough of their assumptions to find the information hazard also tend to be responsible enough to take it, and where the spread of the information hazard is universally limited. Cease speaking the words that make it articulable. It should be noted, this wont look, from the inside, like a conspiracy. There will not be a single refutation of the idea, under this ideology, because no one would think to write it. It will just seem naturally difficult for most people living under it to notice how the idea might ever be important.
Promote ideas that make the information hazard seem ridiculous or uninteresting. An example that may or may not be happening is the US government enabling stories of extraterrestrial origin to hide the possibility that they have unreasonably advanced aerospace technology, materially, by encasing it in dumb glowy saucer stuff that doesn’t make any sense. (a probably fictional example is good because if someone was smart enough and motivated enough to hide something like this, I probably wouldn’t want to tell people about it (if this turns out not to be fictional, USgovt, I’m very sorry, we haven’t thought enough about this to understand why you’d want to hide it.))
If the information hazard concerned is going to be around for a long time, you might want to consider constructing an ideological structure that systematically hides the information hazard, under which the only people who get anywhere near questioning enough of their assumptions to find the information hazard also tend to be responsible enough to take it, and where the spread of the information hazard is universally limited. Cease speaking the words that make it articulable. It should be noted, this wont look, from the inside, like a conspiracy. There will not be a single refutation of the idea, under this ideology, because no one would think to write it. It will just seem naturally difficult for most people living under it to notice how the idea might ever be important.