Trudeau, who worked in Internet technology for seven years, says relying on his smartphone for financial dealings demands a balance between convenience and trust.
"A phone is no more dangerous than a computer," he says. "If you feel safe on your computer, you're delusional. And if you feel safe on a phone, you're even more delusional."
Security threats around every corner
To ease any angst you might have about conducting financial business via smartphone, Prilock's Hirning suggests:
- Installing anti-virus software on your smartphone.
- Enabling your device's "find my phone" feature.
- Switching on the remote locking and data-wiping capabilities.
- Using stock or banking apps supplied only by a financial institution.
- Downloading apps directly from recognized stores like iTunes and Google Play.
However, John Pironti, an information security specialist with ISACA, an IT association, cautions that smartphones remain somewhat "immature" from a security perspective, compared with traditional desktop or laptop computers. For one thing, he says, mobile devices are more prone to theft than desktops and laptops. Furthermore, Pironti says, smartphones connected to public Wi-Fi networks are susceptible to data theft.
Without securing your smartphone, all of your personal data, including passwords, logins and account access, can be swiped, Pironti says. Even if your security is airtight, not every financial transaction is cut out for your smartphone, he says. For instance, you should stick with a computer if you need to fill out a lengthy loan application.
Paying mortgage, taxes with an app
In addition to the various banking, budgeting, payment and credit card apps on his iPhone, cybersecurity expert David Coher recently downloaded an app called Robinhood. Robinhood lets you trade stocks without paying brokerage fees.
"It's been operational for almost a year, but I've only been on it for about six months. In that time, it's worked well," Coher says.
Other than a recent refinancing of his home, Coher turns to smartphone apps for pretty much every financial chore. That includes making his monthly mortgage payments. He's even toying with filing this year's tax return on the mobile version of TurboTax.
"Anything financial that you can do on a computer can be done on a smartphone. And it can generally be done just as easily," Coher says. "I highly recommend taking the time to learn how the different mobile apps that are available for what you're trying to do work and find the app that you're most comfortable using."
No limit to mobile uses
Coher foresees a day when every financial task can be conducted on a smartphone. The only limitation, he says, is what banks and other financial services providers are willing to allow customers to do on mobile apps.
If a new report from Javelin Strategy & Research is any indication, that day is relatively far off, though. One of the more common financial chores completed on smartphones -- payment of bills -- remains an experiment or novelty in the eyes of many American consumers, according to Javelin. The report says Americans fork over $3.3 trillion a year to pay seven important bills, but mobile payments make up just $95 billion of that amount.
On the flip side, a majority of American investors (56 percent) who use smartphones and other mobile devices are comfortable with undertaking sophisticated investing tasks on financial apps, according to a 2014 survey for investment giant Fidelity.
In the broader banking market, mobile apps are making it easier for consumers to toggle between providers of financial services, a new study from consulting firm Bain & Co. suggests.
"As more digital startups and specialist firms -- which are less encumbered by legacy systems and regulations -- enter the market and siphon off business, banks stand to lose even more customers and profits," the study says.
That, in turn, could lead to more choices for smartphone-loving consumers who have an appetite for financial apps.