Information privacy takes a relatively minor role in WALL-E in respect to the plot. The privacy of the humans aboard the Axiom is never brought up or used to directly propel the story in any major way.  But the lack of privacy found aboard the Axiom for its inhabitants is important to discuss. It is worth mentioning that as the entirety of the Axiom was built and paid for by BuyNLarge, they are likely free to do nearly anything they please.

Aboard the Axiom all sense of information privacy is related to the hoverchairs which are used by all the humans on the ship. These chairs act as transport throughout the ship, internet access via the holograms and as an adjustable resting place. They're basically iPhones you can sleep on and drive in. As a result, the people aboard the axiom spend every moment of their lives on their hoverchairs and every waking moment on the internet using the holograms, with no awareness of their surroundings. This can cause problems as excessive use of social media has been linked to depression, anxiety, stress, addiction, "worsening of sleep patterns and lack of motivation."[1]. While little can be said of the security of the hoverchairs in regards to hacking, there's a lot to be said about the lack of basic privacy. 

As a starting point, the chairs have virtually no protection against the simple acts of looking at another's hologram or listening to another's hologram. Although this issue is mitigated by everyone on the Axiom having no awareness of their surroundings, it is still a major privacy concern as anyone in public may see and hear what you're watching or doing online. This is worsened by how advanced technology is aboard the Axiom, as these problems could easily be avoided though modern-day earbuds and polarizing filters for glasses[4].

The primary issues of privacy however, come from the excessive advertising on the Axiom. Every day, the captain starts the day off by advertising the newest product from BuyNLarge. At one point in the movie, a person is seen in a facetime call with another individual (who is 2 feet away) and at least 4 advertisements can be see on his screen while this is happening. Giant billboards aboard the ship are seen advertising the newest clothing that BuyNLarge is offering, as everyone's holograms also pop-up this ad. Even young children are taught in their schools that BuyNLarge is good and to buy from BuyNLarge.

Because the hoverchairs and the entirety of the Axiom is owned by BuyNLarge, these situations bring up major concerns for information as everything is controlled by one company which actively advertises in normally private spaces such as calls and school classes. This presents a serious security concern as every bit of information is centralized, and as a result, is a major target for information breaches[2].

 For the purposes of this section, robots or AI's right to privacy will be ignored as the personalities that are developed are results of a glitch and unintended[3]. 

[1]: Draženović M, Vukušić Rukavina T, Machala Poplašen L. Impact of Social Media Use on Mental Health within Adolescent and Student Populations during COVID-19 Pandemic: Review. Int J Environ Res Public Health. 2023 Feb 15;20(4):3392. doi: 10.3390/ijerph20043392. PMID: 36834091; PMCID: PMC9965407. Accessed 5/1/23

[2]: MEHAN, JULIE E. “INSIDER THREAT, BIG DATA AND THE CLOUD.” Insider Threat: A Guide to Understanding, Detecting, and Defending Against the Enemy from Within, IT Governance Publishing, 2016, pp. 91–105. JSTOR, http://www.jstor.org/stable/j.ctt1cd0mjc.11. Accessed 1 May 2023.

[3]:https://www.pixar.com/feature-films/walle  

[4]: Sorrel, Charlie. "For Your Eyes Only: Polarizing Privacy Monitor Mod." Wired, 20 Nov. 2011, https://www.wired.com/2011/11/for-your-eyes-only-polarizing-privacy-monitor-mod/. (Accessed 1 May 2023)