Twitter Inc. Board is considering measures to protect the social network from hostile bids, following the unwelcome proposal of billionaire Elon Musk to make the company private, according to Bloomberg .

One of the options being considered is the Flip-Over Poison Pill strategy, which provides an opportunity to give existing shareholders the right to buy additional shares at a discount, effectively eroding the enemy’s stake.

Another scenario, which is also being considered by the Twitter board, is to say that the offer is too low.

We remind that Elon Musk offered $ 54.20 per share of Twitter in cash, which meant he offered to buy the company for $43 billion. Musk said it was his “best and final” offer, and has already bought more than a 9% stake in Twitter since earlier this year.

A text was added to the formal note with the offer to buy the company, in which Musk wrote: “this is a high price, and your shareholders will love it.”

At least one well-known investor, however, has already publicly stated that the offer was too low. Saudi Arabia’s Prince Al-Walid bin Talal has said the deal “does not come close to intrinsic value” on a popular social networking platform.

Speaking later at a TED conference, Musk said he was not sure he could really buy Twitter. He added that his intention was also to keep “as many shareholders as the law allows” and not to leave the company in sole proprietorship.

Shares of Twitter fell 1.7% in New York on Thursday, reflecting market sentiment that the deal is likely to be rejected or failed.