Proposed changes would see advertisers unable to automatically track iPhone users across apps.
From a low point in April, Sir Martin Sorrell's venture has reported accelerating growth through the summer despite the pandemic.
She has the personality and experience Dentsu demands for its international business. But can she add firepower to its creativity and culture?
Winning media buying company could help market a vaccine for Covid-19 after French pharma company announced human trials for an experimental drug.
Facebook has pledged to pay publishers to ensure their content is available in the News tab.
Agreement may last only six months but Omnicom agencies stand to gain from priority access to data and insights.
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