Apple’s John Ternus will run one of the world’s most powerful companies; the job is a minefield

At a glance:

• John Ternus inherits Apple's $4 trillion market cap amid unresolved legal battles, geopolitical tensions, and an uncertain AI strategy.
• Tim Cook's 15-year tenure was marked by conflicts with the FBI over encryption, antitrust lawsuits, and controversial compromises in China.
• Ternus must navigate potential disruptions from AI agents and new hardware that could erode the iPhone and App Store dominance.

The Legacy and Inheritance

Tim Cook's 15-year reign as Apple's CEO transformed him into one of the world's most recognizable executives, with a net worth estimated at roughly $3 billion amassed largely through performance-based equity awards. Under his leadership, Apple's market cap surged more than 11x to approximately $4 trillion, cementing its status as a tech titan. Yet the position carries immense baggage: Cook navigated three presidential administrations—two Trump and one Biden—each with distinct approaches to Big Tech regulation and China policy. He also faced the FBI over encryption, defended the App Store against monopoly accusations, made human rights-compromising concessions to maintain Chinese market access, and oversaw the underwhelming consumer reception of the Vision Pro headset. Most critically, Apple's AI future remains unresolved, leaving Ternus to inherit this complex legacy.

The Encryption Battle

The 2016 San Bernardino mass shooting thrust Apple into a defining confrontation with the FBI, which demanded the company help unlock the gunman's iPhone. Cook refused, arguing that encryption was the only meaningful safeguard for user privacy and that creating backdoors would set a dangerous precedent. The standoff ended when the FBI found an alternative method, but it solidified Apple's identity as a privacy-focused company and years of global government tensions. Ternus inherits this stance and its obligations, as encryption battles continue to shape regulatory discussions worldwide. The case established Apple's public commitment to privacy even when facing pressure from U.S. law enforcement.

The App Store Antitrust Wars

Cook faced relentless scrutiny over the App Store's practices, epitomized by Epic Games' 2020 lawsuit challenging Apple's 30% in-app payment commission and restrictive policies. During testimony, Cook struggled to explain why users couldn't pay developers directly at lower prices, drawing skepticism from the judge. Though Apple largely prevailed in 2021—the court declined to label it a monopoly—it was ordered to allow external payment links. Apple complied minimally by charging a 27% commission on external purchases, leading to contempt findings. The Ninth Circuit Court of Appeals upheld this ruling in late 2025, and after Apple's rehearing request was denied last month, the company now prepares to petition the Supreme Court. The legal saga continues as Apple's revenue model faces existential threats.

The Broader Antitrust Front

The App Store battles are part of a wider antitrust assault. The U.S. Department of Justice sued Apple in March 2024, alleging unlawful smartphone market dominance through restrictions on third-party app and device developers—particularly competing smartwatches, digital wallets, and messaging services that impede user switching. A federal judge denied Apple's motion to dismiss, ensuring years of potential litigation. Adding to the pressure, India's regulators recently found Apple guilty of abusing its app market dominance and imposed a potential $38 billion fine, citing refusal to provide financial data. Notably, Apple's modest 9% market share in India offers an unusual angle to contest the findings. Ternus inherits these mid-stream conflicts with Apple's core business model under judicial assault.

The China Balancing Act

Cook's tenure was defined by a delicate balancing act with China, where Apple built its manufacturing ecosystem and became deeply dependent on supply chains. To operate in the Chinese market, he made controversial concessions including removing VPN apps from the App Store and storing iCloud data on state-controlled servers—actions drawing human rights criticism. During Trump's first term, Cook insulated Apple from tariffs by cultivating a personal relationship with the president, who later praised him as "an incredible guy!" Apple has signaled Cook will remain executive chairman to help Ternus navigate geopolitical complexities, acknowledging the value of his institutional knowledge in managing this volatile partnership.

The AI Challenge

Perhaps the most immediate hurdle for Ternus is Apple's AI strategy. Apple's AI chief, John Giannandrea, departs this month following repeated delays in Siri's AI-powered rollout. In a shift, Apple now relies on Google's Gemini and OpenAI's ChatGPT to power some Apple Intelligence features. Market analyst Bob O'Donnell told Reuters that Ternus' "biggest challenge will likely be getting a better AI story and offering together that relies more on Apple's own capabilities and less on third parties." While some argue Apple's cautious approach will prove wise amid today's expensive AI competition, the dependence on rivals underscores the uncertainty of Ternus' AI roadmap.

Executive Turnover and the Future

Beyond headline battles, Ternus inherits significant executive turnover. Recent departures include Apple's longtime COO, general counsel, and head of UI design, requiring him to quickly reshape leadership. Cook's greatest strength was managing complex government and partner relationships while sustaining business growth. Whether Ternus possesses this skill—or if Cook's executive chair role covers gaps—will be closely watched. More fundamentally, industry observers question if the world enabling Apple's dominance could end: AI agents may replace the App Store's 30% model, while new hardware like OpenAI's rumored devices could disrupt the iPhone's grip. Ternus must navigate not just current conflicts but potential paradigm shifts.