Key TakeawaysHalliburton said it has and will continue to incur costs related to a cyberattack in August.The oilfield services provider explained the hacker gained access to certain of its systems that has caused disruptions for its operations and corporate functions.Halliburton warned while the hack hasn't caused significant financial or operational impacts, it remains subject to certain risks from the incident. Shares of Halliburton (HAL) declined Tuesday after the biggest oilfield services provider warn ...