raise a red flag

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raise a red flag

To offer a sign or signal indicating potential, incipient, or imminent danger or trouble. Didn't the fact that your accountant used to be a drug dealer raise a red flag or two when you started doing business with him? Well, it definitely raised a red flag when he got so angry at me over such a minor thing, but I never thought he could be so unreasonable to live with!
See also: flag, raise, red
References in periodicals archive ?
Many phishing attempts are easy for end users to sniff out because they contain bold requests, misspelled words, or questionable attachments that raise red flags.
Still, the industry lagged behind much of the web in overall security, which is sure to raise red flags for consumers as they trust online services more and more with sensitive information and transactions.
By contrast, the complaint notes that Deutsche Bank did raise red flags about a 1 Malaysia Development Berhad transfer, though the deal ultimately was approved.
The skilled sales interviewer can learn to recognize key identifiers that should raise red flags.
Some lawmakers raise red flags, The Dallas Morning News
Other chapters consider the ethics of participation in the bio-enhancement of troops and raise red flags about dual-use medical technologies that will inevitably leak into the civilian sector.
I can think of fewer cold-call pitches that would so hastily raise red flags throughout the community.
But new data raise red flags over the accuracy of previously reported human blood concentrations of BPA--amounts described over the years as being representative of the general population.
Silverman warns that "yes" replies to these other questions raise red flags and signal arrogance.
The alarmist title of the report alone should raise red flags, but also consider this: Never in the survey's five-year history has a retailer scored better than 65 points on a 100-point scale.
Even though hindsight is 20/20, an "allergic reaction" in a patient on lamotrigine should raise red flags.
planning that could raise red flags and lead to an attack's disruption.
It's about encouraging rigorous dialogue and debate, institutionalizing mechanisms to raise red flags early, and learning from mistakes.
Experts say companies that lack production but utilize old patents to make broad infringement claims tend to raise red flags.
The commentators got it right -- there are two teams whose attendance numbers should raise red flags.