NEW YORK (TheStreet) -- Shares of BlackBerry (BBRY) jumped by another 5.5% Wednesday, closing at $7.16. They rose by 4.2% on Monday and by 2.7% on Tuesday amid positive previews of the company's first smartphone to run Alphabet's (GOOGL) - Get Report(GOOG) - Get Report Android software rather than its own.
The company also rolled out improvements to its BlackBerry Messenger service, or BBM.
Still, BlackBerry shares remain down sharply so far this year. The company's stock closed at $10.98 on Dec. 31, 2014. Its most recent high was $12.60 this past Jan. 14.
Verizon Communications(VZ) - Get Report "is merging its cellphone tracking supercookie with AOL's ad tracking network to match users' online habits with their offline details," the investigative website Pro Publica reported. Verizon bought AOL earlier this year.
As a result of Verizon's move, "AOL's network, which is represented on 40% of websites, will be able to match Internet users to their Verizon details, building profiles of their browsing habits and targeting them with specific ads based on their cellphone use," according to a report by The Verge.
"Privacy advocates say that Verizon and AOL's use of the identifier is problematic for two reasons: Not only is the invasive tracking enabled by default, but it also sends the information unencrypted, so that it can easily be intercepted," Pro Publica said.
Verizon Chief Privacy Officer Karen Zacharia told Pro Publica that the company will share the identifier with "a very limited number of other partners and they will only be able to use it for Verizon and AOL purposes."
Verizon shares closed Wednesday at $43.85, a slight gain of less than 1%.
This article is commentary by an independent contributor. At the time of publication, the author held no positions in the stocks mentioned.