Hackers gained access thanks to an outside contractor.

The largest quarterly decline in page views ever reported by LinkedIn.

BI Intelligence chats with Fortumo's Martin Koppel, co-founder and COO.

The U.S. added 30 million new smartphone users in the fourth quarter.

AOL's advertising revenue jumped 23% to $US507 million.

LinkedIn also announced its largest acquisition to date.

Twitter fourth quarter and full-year earnings are out. The company posted solid revenues, but user growth continues to slow, and engagement is declining. Worldwide, the total number of monthly active users in the fourth quarter averaged 241 million — an increase of just 4% from the previous quarter and 30% […]

Apple gained market share while every other platform lost.

Netflix generated $US1.2 billion in revenue, compared to HBO's $US1.3 billion.

Carriers are teaming up to create a ubiquitous mobile wallet solution.

Twitter is beginning to look like a niche platform for advertisers.

Top tech companies are becoming bonafide mobile businesses.

42% of smartphones users watch news videos, 28% of tablet users watch movies.

Low credit card penetration in emerging markets provides an opportunity for direct carrier billing.

Instagram is number two among millennials.

Samsung led the charge but its monumental growth is slowing considerably.

More news on the Target data breach.